Add binaries cross compile in CD (#113)

docs/installation.md

@@ -41,6 +41,20 @@ services:
       GID: 1001
 ```
 
+### Via binary
+
+Download the archive for your system from the release page [here](https://github.com/thomiceli/opengist/releases/latest), and extract it.
+
+```shell
+# example for linux amd64
+wget https://github.com/thomiceli/opengist/releases/download/v1.5.0/opengist1.5.0-linux-amd64.tar.gz
+
+tar xzvf opengist1.5.0-linux-amd64.tar.gz
+cd opengist
+chmod +x opengist
+./opengist # with or without `--config config.yml`
+```
+
 
 ## From source