Once someone has added this to their bookmark toolbar and started to use it, they are likely to forget where they got it from. And when they want to know where they got it from, they are likely to look for clues in the source code of the bookmarklet.

So, I humbly suggest that you add to the bookmarklet some "googleable" string such as "Author: niyazpk". When I googled on "niyazpk" just now, your Github was the fourth hit.