Inconsistent formatting of text with octicons #35326

Code of Conduct

• I have read and agree to the GitHub Docs project's Code of Conduct

What article on docs.github.com is affected?

Multiple articles.

What part(s) of the article would you like to see updated?

I noticed that the formatting of text with octicons is in the docs inconsistent:

{% octicon "pencil" aria-hidden="true" %} **Edit**

OR

**{% octicon "pencil" aria-hidden="true" %} Edit**

EDIT:
There is also the usage of aria-label instead of aria-hidden="true":

**{% octicon "gear" aria-label="The Settings gear" %} Settings**

The formatting should be unified to:

**{% octicon "pencil" aria-hidden="true" %} Edit**

Additional information

I could provide a PR to fix this issues.