Improved documentation

Added some links, tips to documentation

Author: SloCompTech

CHANGELOG.md

@@ -4,6 +4,8 @@
 
 - Added instructions for IPv6 configuration
 - Added outside interface option to setup wizards
+- Added some links to documentation
+
 ### 1.0.3 - New examples, fixes, more docs
 
 - Updated instructions

CONTRIBUTING.md

@@ -90,4 +90,5 @@ Sections:
 
 - [OpenVPN docs](https://community.openvpn.net/openvpn/wiki/GettingStartedwithOVPN)  
 - [Setup OpenVPN on alpine linux](https://wiki.alpinelinux.org/wiki/Setting_up_a_OpenVPN_server#Alternative_Certificate_Method)  
-- [EasyRSA](https://community.openvpn.net/openvpn/wiki/GettingStartedwithOVPN)   
+- [EasyRSA](https://community.openvpn.net/openvpn/wiki/GettingStartedwithOVPN)
+- [EasyRSA doc](https://github.com/OpenVPN/easy-rsa/tree/master/doc)

README.md

@@ -72,6 +72,8 @@ services:
 |`-e PGID=1000`|for GroupID - see below for explanation|
 |`-v /config`|All the config files including OpenVPNs reside here|
 
+See also: [EasyRSA](https://github.com/OpenVPN/easy-rsa/blob/master/doc/EasyRSA-Advanced.md)  
+
 ## User / Group Identifiers
 
 When using volumes (`-v` flags) permissions issues can arise between the host OS and the container, we avoid this issue by allowing you to specify the user `PUID` and group `PGID`.

docs/README.md

@@ -72,7 +72,8 @@ Configs:
     <example config name>
 ```
 
-**Note:** Please read example documentation to understand how to use it.  
+**Note:** Please read example documentation to understand how to use it.
+**Warning:** Some examples automaticaly add firewall rules, so if you are using host networking make sure to check **iptables** for correct configuration.     
 **Tip:** If you modifed config in a way that others might need same configuration, consider making new example.  
 
 #### ovpn_init

docs/SetupGuide.md

@@ -141,4 +141,4 @@ This is simple setup guide to help you get started. It uses the simplest configu
     ```
 
 **Note:** PUID, GUID parameters are optional.  
-**Note:** Container in this example will connect to host network, so there is less network overhead (recommended), this also works if container is in default docker network.  
+**Note:** Container in this example will connect to host network, so there is less network overhead (recommended), this also works if container is in default docker network. (But be careful if you already have firewall configured, because some rules are added when using most of examples).