doc: update PR title instructions (#994)

.github/pull_request_template.md

@@ -11,7 +11,7 @@ _Put an `x` in the boxes that apply. You can also fill these out after creating
 #### General
 
 - [ ] I have read the [CONTRIBUTING](https://github.com/amazon-braket/amazon-braket-sdk-python/blob/main/CONTRIBUTING.md) doc
-- [ ] I used the commit message format described in [CONTRIBUTING](https://github.com/amazon-braket/amazon-braket-sdk-python/blob/main/CONTRIBUTING.md#commit-your-change)
+- [ ] I used the PR title format described in [CONTRIBUTING](https://github.com/amazon-braket/amazon-braket-sdk-python/blob/main/CONTRIBUTING.md#PR-title-format)
 - [ ] I have updated any necessary documentation, including [READMEs](https://github.com/amazon-braket/amazon-braket-sdk-python/blob/main/README.md) and [API docs](https://github.com/amazon-braket/amazon-braket-sdk-python/blob/main/CONTRIBUTING.md#documentation-guidelines) (if appropriate)
 
 #### Tests

CONTRIBUTING.md

@@ -95,10 +95,18 @@ You can also pass in various pytest arguments `tox -e integ-tests -- your-argume
 1. Run `tox`, to run all the unit tests, linters, and documentation creation, and verify that all checks and tests pass.
 1. If your changes include documentation changes, please see the [Documentation Guidelines](#documentation-guidelines).
 
+### Send a Pull Request
+
+GitHub provides additional documentation on [Creating a Pull Request](https://help.github.com/articles/creating-a-pull-request/).
+
+Please remember to:
+* Use PR titles that follow the guidelines under [PR Title Format](#pr-title-format).
+* Send us a pull request, answering any default questions in the pull request interface.
+* Pay attention to any automated CI failures reported in the pull request, and stay involved in the conversation.
 
-### Commit Your Change
+#### PR Title Format
 
-We use commit messages to update the project version number and generate changelog entries, so it's important for them to follow the right format. Valid commit messages include a prefix, separated from the rest of the message by a colon and a space. Here are a few examples:
+We use commit messages to update the project version number and generate changelog entries. The PR title is used as the commit message when merging a PR, so it's important for PR titles to follow the right format. Valid PR titles include a prefix, separated from the rest of the message by a colon and a space. Here are a few examples:
 
 ```
 feature: support new parameter for `xyz`
@@ -122,16 +130,6 @@ Some of the prefixes allow abbreviation ; `break`, `feat`, `depr`, and `doc` are
 For the rest of the message, use imperative style and keep things concise but informative. See [How to Write a Git Commit Message](https://chris.beams.io/posts/git-commit/) for guidance.
 
 
-### Send a Pull Request
-
-GitHub provides additional documentation on [Creating a Pull Request](https://help.github.com/articles/creating-a-pull-request/).
-
-Please remember to:
-* Use commit messages (and PR titles) that follow the guidelines under [Commit Your Change](#commit-your-change).
-* Send us a pull request, answering any default questions in the pull request interface.
-* Pay attention to any automated CI failures reported in the pull request, and stay involved in the conversation.
-
-
 ```mermaid
 timeline
     title Code integration journey (CI)