Add info about running redis server

diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index b95ca367e651bb9f18a525b817501dad606411ef..75557865e6fce920b3aac049e7af3abaa2acabb4 100644 (file)
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -116,6 +116,9 @@ $ sudo -u postgres psql -c "CREATE EXTENSION pg_trgm;" peertube_dev
 $ sudo -u postgres psql -c "CREATE EXTENSION unaccent;" peertube_dev
 ```
 
+Peertube also requires a running redis server, no special setup is needed for
+this.
+
 In dev mode, administrator username is **root** and password is **test**.
 
 ### Online development