docs: Improve formatting in README

Author: alexandear

README.md

@@ -1,15 +1,15 @@
 # go-github #
 
 [![go-github release (latest SemVer)](https://img.shields.io/github/v/release/google/go-github?sort=semver)](https://github.com/google/go-github/releases)
-[![GoDoc](https://img.shields.io/static/v1?label=godoc&message=reference&color=blue)](https://pkg.go.dev/github.com/google/go-github/v65/github)
+[![Go Reference](https://img.shields.io/static/v1?label=godoc&message=reference&color=blue)](https://pkg.go.dev/github.com/google/go-github/v65/github)
 [![Test Status](https://github.com/google/go-github/workflows/tests/badge.svg)](https://github.com/google/go-github/actions?query=workflow%3Atests)
 [![Test Coverage](https://codecov.io/gh/google/go-github/branch/master/graph/badge.svg)](https://codecov.io/gh/google/go-github)
 [![Discuss at [email protected]](https://img.shields.io/badge/discuss-go--github%40googlegroups.com-blue.svg)](https://groups.google.com/group/go-github)
 [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/796/badge)](https://bestpractices.coreinfrastructure.org/projects/796)
 
 go-github is a Go client library for accessing the [GitHub API v3][].
 
-Currently, **go-github requires Go version 1.13 or greater**.  go-github tracks
+Currently, **go-github requires Go version 1.21 or greater**.  go-github tracks
 [Go's version support policy][support-policy].  We do our best not to break
 older versions of Go if we don't have to, but due to tooling constraints, we
 don't always test older versions.
@@ -71,10 +71,9 @@ repos, _, err := client.Repositories.ListByOrg(context.Background(), "github", o
 ```
 
 The services of a client divide the API into logical chunks and correspond to
-the structure of the GitHub API documentation at
-https://docs.github.com/en/rest .
+the structure of the [GitHub API documentation](https://docs.github.com/en/rest).
 
-NOTE: Using the [context](https://godoc.org/context) package, one can easily
+NOTE: Using the [context](https://pkg.go.dev/context) package, one can easily
 pass cancelation signals and deadlines to various services of the client for
 handling a request. In case there is no context available, then `context.Background()`
 can be used as a starting point.
@@ -97,11 +96,12 @@ include the specified OAuth token. Therefore, authenticated clients should
 almost never be shared between different users.
 
 For API methods that require HTTP Basic Authentication, use the
-[`BasicAuthTransport`](https://godoc.org/github.com/google/go-github/github#BasicAuthTransport).
+[`BasicAuthTransport`](https://pkg.go.dev/github.com/google/go-github/github#BasicAuthTransport).
 
 #### As a GitHub App ####
 
-GitHub Apps authentication can be provided by different pkgs like [ghinstallation](https://github.com/bradleyfalzon/ghinstallation) or [go-githubauth](https://github.com/jferrl/go-githubauth).
+GitHub Apps authentication can be provided by different pkgs like [bradleyfalzon/ghinstallation](https://github.com/bradleyfalzon/ghinstallation)
+or [jferrl/go-githubauth](https://github.com/jferrl/go-githubauth).
 
 > **Note**: Most endpoints (ex. [`GET /rate_limit`]) require access token authentication
 > while a few others (ex. [`GET /app/hook/deliveries`]) require [JWT] authentication.
@@ -148,33 +148,33 @@ Other example using `go-githubauth`:
 package main
 
 import (
- "context"
- "fmt"
- "os"
- "strconv"
-
- "github.com/google/go-github/v65/github"
- "github.com/jferrl/go-githubauth"
- "golang.org/x/oauth2"
+	"context"
+	"fmt"
+	"os"
+	"strconv"
+
+	"github.com/google/go-github/v65/github"
+	"github.com/jferrl/go-githubauth"
+	"golang.org/x/oauth2"
 )
 
 func main() {
- privateKey := []byte(os.Getenv("GITHUB_APP_PRIVATE_KEY"))
+	privateKey := []byte(os.Getenv("GITHUB_APP_PRIVATE_KEY"))
 
- appTokenSource, err := githubauth.NewApplicationTokenSource(1112, privateKey)
- if err != nil {
-  fmt.Println("Error creating application token source:", err)
-  return
- }
+	appTokenSource, err := githubauth.NewApplicationTokenSource(1112, privateKey)
+	if err != nil {
+		fmt.Println("Error creating application token source:", err)
+		return
+	 }
 
- installationTokenSource := githubauth.NewInstallationTokenSource(1113, appTokenSource)
+	installationTokenSource := githubauth.NewInstallationTokenSource(1113, appTokenSource)
 
- // oauth2.NewClient uses oauth2.ReuseTokenSource to reuse the token until it expires.
- // The token will be automatically refreshed when it expires.
- // InstallationTokenSource has the mechanism to refresh the token when it expires.
- httpClient := oauth2.NewClient(context.Background(), installationTokenSource)
+	// oauth2.NewClient uses oauth2.ReuseTokenSource to reuse the token until it expires.
+	// The token will be automatically refreshed when it expires.
+	// InstallationTokenSource has the mechanism to refresh the token when it expires.
+	httpClient := oauth2.NewClient(context.Background(), installationTokenSource)
 
- client := github.NewClient(httpClient)
+	client := github.NewClient(httpClient)
 }
 ```
 
@@ -205,8 +205,7 @@ if _, ok := err.(*github.RateLimitError); ok {
 }
 ```
 
-Learn more about GitHub rate limiting at
-https://docs.github.com/en/rest/rate-limit .
+Learn more about GitHub rate limiting in the ["REST API endpoints for rate limits"](https://docs.github.com/en/rest/rate-limit).
 
 In addition to these rate limits, GitHub imposes a secondary rate limit on all API clients.
 This rate limit prevents clients from making too many concurrent requests.
@@ -226,11 +225,11 @@ Alternatively, you can block until the rate limit is reset by using the `context
 repos, _, err := client.Repositories.List(context.WithValue(ctx, github.SleepUntilPrimaryRateLimitResetWhenRateLimited, true), "", nil)
 ```
 
-You can use [go-github-ratelimit](https://github.com/gofri/go-github-ratelimit) to handle
+You can use [gofri/go-github-ratelimit](https://github.com/gofri/go-github-ratelimit) to handle
 secondary rate limit sleep-and-retry for you.
 
-Learn more about GitHub secondary rate limiting at
-https://docs.github.com/en/rest/using-the-rest-api/rate-limits-for-the-rest-api?apiVersion=2022-11-28#about-secondary-rate-limits .
+Learn more about GitHub secondary rate limiting in the
+["About secondary rate limits"](https://docs.github.com/en/rest/using-the-rest-api/rate-limits-for-the-rest-api?apiVersion=2022-11-28#about-secondary-rate-limits).
 
 ### Accepted Status ###
 
@@ -255,7 +254,7 @@ The GitHub API has good support for conditional requests which will help
 prevent you from burning through your rate limit, as well as help speed up your
 application. `go-github` does not handle conditional requests directly, but is
 instead designed to work with a caching `http.Transport`. We recommend using
-https://github.com/gregjones/httpcache for that. For example:
+[gregjones/httpcache](https://github.com/gregjones/httpcache) for that. For example:
 
 ```go
 import "github.com/gregjones/httpcache"
@@ -265,8 +264,8 @@ import "github.com/gregjones/httpcache"
     ).WithAuthToken(os.Getenv("GITHUB_TOKEN"))
 ```
 
-Learn more about GitHub conditional requests at
-https://docs.github.com/en/rest/using-the-rest-api/best-practices-for-using-the-rest-api?apiVersion=2022-11-28#use-conditional-requests-if-appropriate
+Learn more about GitHub conditional requests in the
+["Use conditional requests if appropriate"](https://docs.github.com/en/rest/using-the-rest-api/best-practices-for-using-the-rest-api?apiVersion=2022-11-28#use-conditional-requests-if-appropriate).
 
 ### Creating and Updating Resources ###
 
@@ -316,7 +315,7 @@ for {
 }
 ```
 
-#### Iterators (**experimental**)
+#### Iterators (**experimental**) ####
 
 Go v1.23 introduces the new `iter` package.  
 
@@ -367,7 +366,7 @@ For complete usage of go-github, see the full [package docs][].
 [GitHub webhook events]: https://docs.github.com/en/developers/webhooks-and-events/webhooks/webhook-events-and-payloads
 [cbrgm/githubevents]: https://github.com/cbrgm/githubevents
 
-### Testing code that uses `go-github`
+### Testing code that uses `go-github` ###
 
 The repo [migueleliasweb/go-github-mock](https://github.com/migueleliasweb/go-github-mock) provides a way to mock responses. Check the repo for more details.
 
@@ -376,6 +375,7 @@ The repo [migueleliasweb/go-github-mock](https://github.com/migueleliasweb/go-gi
 You can run integration tests from the `test` directory. See the integration tests [README](test/README.md).
 
 ## Contributing ##
+
 I would like to cover the entire GitHub API and contributions are of course always welcome. The
 calling pattern is pretty well established, so adding new methods is relatively
 straightforward. See [`CONTRIBUTING.md`](CONTRIBUTING.md) for details.