chore(docs): fix typos (graphql#1284)

- add missing curly bracket
- fix spelling error

Author: Nischal2015

src/content/blog/2020-12-08-defer-stream.md

@@ -24,6 +24,7 @@ query {
   person(id: "cGVvcGxlOjE=") {
     name
     ...HomeworldFragment @defer(label: "homeworldDefer")
+  }
 }
 
 fragment HomeworldFragment on Person {

src/content/blog/2022-11-07-graphql-http.md

@@ -29,7 +29,7 @@ fallen behind.
 Luckily, thanks to the focused efforts of [Denis Badurina](https://github.com/enisdenjo),
 we have an alternative in [graphql-http](https://github.com/graphql/graphql-http).
 Denis has been part of the committee working on the GraphQL over HTTP
-specification, and sought to build a depenency-free compliant GraphQL server
+specification, and sought to build a dependency-free compliant GraphQL server
 that works with most all existing Node and Deno HTTP frameworks.
 
 The decision was made to adopt the [graphql-http](https://github.com/graphql/graphql-http)

src/content/learn/BestPractice-NodeInterface.md

@@ -27,6 +27,7 @@ objects "nodes." Here is an example query for a node:
       name
     }
   }
+}
 ```
 
 - The GraphQL schema is formatted to allow fetching any object via the `node` field on the root query object. This