OPAM Installation.

README.md

@@ -73,6 +73,7 @@ Aura Engine is the play-out engine of the Aura Radio Software Suite. Aura stands
 
 * **Python**: https://docs.python.org/
 * **Redis**: https://redis.io/
+* **OPAM (OCaml Package Manager)**: https://opam.ocaml.org/
 * **Liquidsoap**: https://www.liquidsoap.info/doc-1.4.0/
 * **Jack Audio**: https://jackaudio.org/
 * **Flask**: https://palletsprojects.com/p/flask/

docs/installation-development.md

@@ -19,13 +19,13 @@ Aura Engine runs on any modern Debian-based OS. It requires at least
 
 - `Node 13`
 - `Python 3.7`
-- `OPAM`
 - `git`
 
 Additionally you'll need these system packages:
 
 ```bash
 apt-get install \
+    opam \
     redis-server \
     libsndfile1 \
     ffmpeg \