doc changes from review comments

Author: alsuren

CHANGELOG.md

@@ -1,5 +1,10 @@
 ## master
 
+### Features
+* `[jest-cli]` `--changedSince`: allow selectively running tests for code
+  changed since arbitrary revisions.
+  ([#5312](https://github.com/facebook/jest/pull/5312))
+
 ### Fixes
 
 * `[jest-cli]` Fix `EISDIR` when a directory is passed as an argument to `jest`.
@@ -12,9 +17,6 @@
 * `[jest-cli]` Make Jest exit without an error when no tests are found in the
   case of `--lastCommit`, `--findRelatedTests`, or `--onlyChanged` options
   having been passed to the CLI
-* `[jest-cli]` `--changedSince`: allow selectively running tests for code
-  changed since arbitrary revisions.
-  ([#5312](https://github.com/facebook/jest/pull/5312))
 
 ### Fixes
 * `[jest-cli]` Use `import-local` to support global Jest installations.

docs/CLI.md

@@ -110,6 +110,8 @@ commit. Behaves similarly to `--onlyChanged`.
 
 ### `--changedSince`
 
+##### available in Jest **22.2.0+**
+
 Runs tests related the changes since the provided branch. If the current branch
 has diverged from the given branch, then only changes made locally will be
 tested. Behaves similarly to `--onlyChanged`.