Update README

- specify `less` version
- change CONTRIBUTING notes

README.md

@@ -33,7 +33,7 @@ inspired by
 * bash >= 4.0
 * iconv
 * openssl
-* less
+* less (with lesskey)
 * dd
 
 # INSTALL
@@ -66,7 +66,6 @@ MIT
 
 # CONTRIBUTING
 
-Feel free to write to my
-[public inbox](https://lists.sr.ht/~acdw/public-inbox)
-with changes you'd like to make, or submit an issue to the
-[ticket tracker.](https://todo.sr.ht/~acdw/bollux)
+Create an [issue](https://tildegit.org/acdw/bollux/issues/new) or
+[pull request](https://tildegit.org/acdw/bollux/compare/main...main) and I'll
+get back to you posthaste!