--timings-type=testname doesnt quite work as we expected (circleci#8914)

* Update rerun-failed-tests.adoc

* fix lint errors

---------

Co-authored-by: Rosie Yohannan <[email protected]>

Author: sebastian-lerner

jekyll/_cci2/rerun-failed-tests.adoc

@@ -96,7 +96,7 @@ NOTE: You can specify the timing type similar to `circleci tests split --split-b
 
 After updating your configuration, run the job that runs tests again and make sure that the same number of tests are being executed as before the config.yml change.
 
-Then, the next time you encounter a test failure on that job, click the "Rerun failed tests" button.  If the `--verbose` setting is enabled, you should see output similar to the following the next time you click btn:[Rerun failed tests] with this job on CircleCI:
+Then, the next time you encounter a test failure on that job, select btn:[Rerun failed tests].  If the `--verbose` setting is enabled, you should see output similar to the following the next time you select btn:[Rerun failed tests] with this job on CircleCI:
 
 ```sh
 Installing circleci-tests-plugin-cli plugin.
@@ -633,7 +633,7 @@ On a rerun, if the parallel run is running tests, `no_files_here` will be popula
 [#approval-jobs]
 === Approval jobs
 
-If your workflow has an approval job, and a failed job containing failed tests that you wish to rerun, you will not be able to click btn:[Rerun failed tests] until the workflow has terminated.  This means that you must cancel the approval job before you can click btn:[Rerun failed tests].
+If your workflow has an approval job, and a failed job containing failed tests that you wish to rerun, you will not be able to select btn:[Rerun failed tests] until the workflow has terminated.  This means that you must cancel the approval job before you can select btn:[Rerun failed tests].
 
 [#Error-can-not-rerun-failed-tests-no-failed-tests-could-be-found]
 === Error: can not rerun failed tests: no failed tests could be found
@@ -692,7 +692,7 @@ If you run into issues, comment on the https://discuss.circleci.com/t/product-la
 
 ---
 
-**Question:** Are tests that my test runner reported as "Skipped" or "Ignored" rerun when I click btn:[Rerun failed tests]?
+**Question:** Are tests that my test runner reported as "Skipped" or "Ignored" rerun when I select btn:[Rerun failed tests]?
 
 **Answer:** No, only test files/classnames that have at least one test case reported as "Failed" will be rerun.
 
@@ -720,3 +720,7 @@ circleci tests glob ".cypress/**/*.spec.js" | circleci tests run --command="xarg
 ----
 
 ---
+
+**Question:** Can I use `timings-type=testname`?
+
+**Answer:** In order to use `timings-type=testname`, the test runner/framework must be able to take in as *input* a list of *test names* (as opposed to *classnames* or *file names*). Most test frameworks (including RSpec) do not accept as input a list of test names.  If the test framework accepts as input a list of test names, pipe the test names into `circleci tests run` instead of piping in test file/class names via `circleci tests glob`.  This will enable CircleCI to find the historical test data for individual test names and split the test names into logical groups.