I added the bookmarklet to my bookmarks bar so it's pretty easy to just navigate to the releases page on github and hit the button. I change the "visibility" setting to "show in its category" so things stay in their lanes rather than all go in a communal main feed but otherwise leave it as default.
I did have to add some filters to the categories so it wouldn't flag all the -dev/-rc releases but that's it. The filters that work for me are:
intitle:prototype-
intitle:-build-number
intitle:rc5
intitle:rc6
intitle:rc7
intitle:rc8
intitle:rc9
intitle:-dev.
intitle:Beta
intitle:preview-
intitle:rc1
intitle:rc2
intitle:rc3
intitle:rc4
intitle:"Release Candidate"
intitle:Alpha
intitle:-rc
intitle:-alpha
intitle:-beta
intitle:develop-
intitle:"Development release"
intitle:Pre-Release