Add notes about proxy setup

Readme.md

@@ -10,6 +10,9 @@ The easiest method of installation and update is to use docker and docker-compos
 
 ### Docker install
 
+If tower and node does not have direct access to the internet. [Setup proxy](docs/proxy.md)
+
+
 #### Install python-pip 
 <details>
 <summary>CentOS/RHEL </summary>