repo sync (#16715)

* Improve documentation issue no #1034

Done with the minor fixes for open issue number #1034 .

* Increasing the importance

I wanted to delete a branch, but I couldn't in spite of reading this document. The problem was, the branch I wanted to delete was the default branch. 
Even though it is stated in this document, it was not given enough importance that everyone would see it.

* typo

A small type in the comments

* Update setting-up-your-development-environment-to-create-a-github-app.md

Fix two small typos.

* properly capitalize "macOS"

* Clarify GH password requirements

* Change " to `

As done in the description of `master`

* " to ` in DE

* " to ` in PT

* " to ` in RU

* Fix typo metadata-syntax-for-github-actions.md

Fix typo for metadata-syntax-for-github-actions#outputs-for-composite-run-steps-actions

* chore: Remove bolding from headings

* Removed deprecated echo set-env instruction

* fix typo (#1516)

Co-authored-by: hubwriter <hubwriter@github.com>

* Remove extraneous grammar period which breaks the compare URL (#1252)

* Remove extraneous grammar period which breaks the compare URL

* Update data/reusables/repositories/two-dot-diff-comparison-example-urls.md

Co-authored-by: Nick Schonning <nschonni@gmail.com>

Co-authored-by: Nick Schonning <nschonni@gmail.com>
Co-authored-by: hubwriter <hubwriter@github.com>

* Revert "" to ` in RU"

This reverts commit d484fd6ef5.

* Revert "" to ` in PT"

This reverts commit fab62f05be.

* Revert "" to ` in DE"

This reverts commit 78abcd6f7a.

* Change md

This squashes all the translation commits and their deletion.

* Update content/github/collaborating-with-issues-and-pull-requests/creating-and-deleting-branches-within-your-repository.md

Co-authored-by: Felicity Chapman <felicitymay@github.com>

Co-authored-by: Atharva Shirdhankar <72031540+StarTrooper08@users.noreply.github.com>
Co-authored-by: Aakarsh B <aakarshbiju@gmail.com>
Co-authored-by: Aritra Roy Gosthipaty <aritra.born2fly@gmail.com>
Co-authored-by: Guilherme Macedo <guilherme@gmacedo.com>
Co-authored-by: Stephen Wade <stephen@stephenwade.me>
Co-authored-by: Shao Yang Hong <hongsy2006@gmail.com>
Co-authored-by: a2br <62328077+a2br@users.noreply.github.com>
Co-authored-by: Cas van Dinter <casvd@hotmail.com>
Co-authored-by: Nick Schonning <nschonni@gmail.com>
Co-authored-by: Antoine Rondelet <rondelet.antoine@gmail.com>
Co-authored-by: Shati Patel <42641846+shati-patel@users.noreply.github.com>
Co-authored-by: Meg Bird <megbird@github.com>
Co-authored-by: ねず <39144575+wonda-tea-coffee@users.noreply.github.com>
Co-authored-by: hubwriter <hubwriter@github.com>
Co-authored-by: Ilia <ilia@wearebond.com>
Co-authored-by: a2br <a2br@users.noreply.github.com>
Co-authored-by: Felicity Chapman <felicitymay@github.com>
Co-authored-by: Jason Etcovitch <jasonetco@github.com>

content/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning.md

@@ -188,7 +188,7 @@ jobs:
         fi
         # Set the `CODEQL-PYTHON` environment variable to the Python executable
         # that includes the dependencies
-        echo "::set-env name=CODEQL_PYTHON::$(which python)"
+        echo "CODEQL_PYTHON=$(which python)" >> $GITHUB_ENV
     - name: Initialize CodeQL
       uses: github/codeql-action/init@v1
       with:

content/github/finding-security-vulnerabilities-and-errors-in-your-code/running-codeql-code-scanning-in-a-container.md

@@ -21,7 +21,7 @@ You must run {% data variables.product.prodname_codeql %} in the same container
 You may have difficulty running {% data variables.product.prodname_code_scanning %} if the container you're using is missing certain dependencies (for example, Git must be installed and added to the PATH variable). If you encounter dependency issues, review the list of software typically included on {% data variables.product.prodname_dotcom %}'s virtual environments. For more information, see the version-specific `readme` files in these locations:
 
 * Linux: https://github.com/actions/virtual-environments/tree/main/images/linux
-* MacOS: https://github.com/actions/virtual-environments/tree/main/images/macos
+* macOS: https://github.com/actions/virtual-environments/tree/main/images/macos
 * Windows: https://github.com/actions/virtual-environments/tree/main/images/win
 
 ### Example workflow

content/github/finding-security-vulnerabilities-and-errors-in-your-code/running-codeql-code-scanning-in-your-ci-system.md

@@ -39,7 +39,7 @@ On Linux:
 chmod +x codeql-runner-linux
 ```
 
-On MacOS:
+On macOS:
 
 ```shell
 chmod +x codeql-runner-macos