Updates via GitHub and RSS

[felixchenier]

A quick note to tell that from now on, in addition to Twitter, you can follow KTK announcements by watching the GitHub repository, or via good old RSS:

• GitHub discussions: https://github.com/felixchenier/kineticstoolkit/discussions
• RSS: https://github.com/felixchenier/kineticstoolkit/discussions/categories/announcements.atom

[felixchenier]

A quick update that the Twitter account will be closed soon. #163