docs: add contributions section

Amolith created

Change summary

README.md | 9 +++++++++
1 file changed, 9 insertions(+)

Detailed changes

README.md 🔗

@@ -77,3 +77,12 @@ A grumpy old herald who watches your Mumble server and announces comings and goi
 ```bash
 sudo journalctl -u mumblingherald -f
 ```
+
+## Contributions are welcome
+
+This repo is on SourceHut ([repo][srhtrepo]) and Radicle ([web][radrepo],
+`rad:z37gVhKaFLFso2zkBHNdB6pK3HipW`, [what is Radicle?][rad]).
+
+[srhtrepo]: https://git.sr.ht/~amolith/mumblingherald
+[radrepo]: https://radicle.secluded.site/nodes/seed.secluded.site/rad:z37gVhKaFLFso2zkBHNdB6pK3HipW
+[rad]: https://radicle.xyz