clarify the paste tag reference in logs.ytag

[itsmiir]

visitors to the guild (who are most likely to be the audience of this tag) might not realize what "the paste tag" refers to

old:

...instead of uploading the file directly, see the `paste` tag for a list of sites you can use.

new:

...instead of uploading the file directly. Type `!!paste` for a list of sites you can use.