Adding strike through to Deprecated/Abandoned/Deleted Entries

[alejandro-alzate]

For example: modern love negates ~~love-mimcrophone~~ (Prove) and others were abandoned and no longer work on modern love.

So ~~stealing~~ borrowing typing hints standards from editors, that warns you about that you're using a legacy feature that may or may not either break or get removed. But still allows to use it, and explains it's functionality.