Create docker dev env (#220)

docs/installation.md

@@ -58,10 +58,11 @@ chmod +x opengist
 
 ## From source
 
-Requirements : 
+Requirements: 
 * [Git](https://git-scm.com/downloads) (2.28+)
 * [Go](https://go.dev/doc/install) (1.21+)
 * [Node.js](https://nodejs.org/en/download/) (16+)
+* [Make](https://linux.die.net/man/1/make) (optional, but easier)
 
 ```shell
 git clone https://github.com/thomiceli/opengist