'use strict' on new line
Fix bad anchor link in CONTRIBUTING.md

Hey look, I'm contributing to CONTRIBUTING.md!

This anchor must have been overlooked while updating the docs in a previous commit. Expected behavior: scroll the document to a linked section. Experienced behavior: nada.

This proposed file change renames the anchor text from `coding conventions` to `coding guidelines` and changes the anchor link from `#code-conventions` to `#code-guidelines`.
Merge pull request #12133 from leoj3n/patch-1

Fix bad anchor link in CONTRIBUTING.md
Improve wording in CONTRIBUTING.md

Parts of the "Pull requests" section are strangely worded.

This commit fixes that.
Merge pull request #12135 from leoj3n/patch-2

Improve wording in CONTRIBUTING.md
Merge pull request #12057 from ZDroid/nl

'use strict' on new line