Add Adminer to docs

DOCUMENTATION/_settings/content/documentation/index.md

@@ -706,6 +706,25 @@ docker-compose up -d mariadb phpmyadmin
 
 
 
+<br>
+<a name="Use-Adminer"></a>
+## Use Adminer
+
+1 - Run the Adminer Container (`adminer`) with the `docker-compose up` command. Example:
+
+```bash
+# use with nginx 
+# must use it as fastcgi is required 
+docker-compose up -d nginx adminer  
+```
+
+2 - Open your browser and visit the localhost on port **8080**:  `http://localhost:8080`
+
+
+
+
+
+
 <br>
 <a name="Use-pgAdmin"></a>
 ## Use PgAdmin