fix: various list item descriptions

[maehr]

fixes the issues mentioned in sindresorhus/awesome#2155 and finally #11

Add / Remove / Edit {entry name} to/from the "{section name}" section.

Short pitch

Describe why this change is made. Alternatively, refer to existing issues if
any. You could try to answer:

• Why do / don't you find this tool awesome?
• How do you use this tool in your workflow?
• What advantages / disadvantages does it have compared to {another tool}?

Checklist

• I have read and understood the contribution guidelines.
• Table of contents has been updated (if a section is added / removed).
• Contents have been sorted alphabetically.

[maltevogl]

Looks good to me!