[nongnu] elpa/raku-mode aa5078f9cc 112/253: Mention test suite in README.md

[ELPA Syncer]

branch: elpa/raku-mode
commit aa5078f9ccefe756e73bb204dc7446ea20966b53
Author: Hinrik Örn Sigurðsson <hinrik.sig@gmail.com>
Commit: Hinrik Örn Sigurðsson <hinrik.sig@gmail.com>

    Mention test suite in README.md
---
 README.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/README.md b/README.md
index c0e4b05e90..9c482b1f4f 100644
--- a/README.md
+++ b/README.md
@@ -68,6 +68,9 @@ hinrik.sig@gmail.com.
 
 Pull requests are welcome.
 
+You might want to install [`cask`][cask] so you can run the test suite
+(with `make test`).
+
 ## License
 
 Perl 6 Mode is free software: you can redistribute it and/or modify it