Docs: Kokkoja in five minutes

README.md

@@ -15,6 +15,8 @@ may be used.
 
 * [An introduction](docs/introduction.md): what Kokkoja does and whom it
   is for.
+* [Kokkoja in five minutes](docs/quickstart.md): the shortest path to a
+  shared page, for someone at home in a terminal.
 * [A guest's Kokkoja](docs/guest.md): joining a session from an
   invitation, and the screen.
 * [A host's Kokkoja](docs/host.md): installing the Kokkoja program,