Fix broken link

Signed-off-by: Denis Varlakov <denis@dfns.co>

Author: survived

Makefile

@@ -11,6 +11,6 @@ docs-open:
 
 readme:
 	cargo readme -i src/lib.rs -r round-based/ -t ../docs/readme.tpl --no-indent-headings \
-		| perl -ne 's/(?<!!)\[([^\[]+?)\]\([^\(]+?\)/\1/g; print;' \
+		| perl -ne 's/(?<!!)\[([^\[]+?)\]\((?!https:)[^\(]+?\)/\1/g; print;' \
 		| perl -ne 's/\[([^\[]+?)\](?!\()/\1/g; print;' \
 		> README.md

README.md

@@ -39,4 +39,4 @@ the documentation of the protocol you're using), but usually they are:
 * `runtime-tokio` enables tokio-specific implementation of async runtime
 
 ## Join us in Discord!
-Feel free to reach out to us in Discord!
+Feel free to reach out to us [in Discord](https://discordapp.com/channels/905194001349627914/1285268686147424388)!