update readmes

rainloop/README.md

@@ -3,43 +3,25 @@
 ![](https://i.goopics.net/nI.png)
 
 #### What is this?
-Rainloop is a SIMPLE, MODERN & FAST WEB-BASED EMAIL CLIENT. More info on the [official website](http://www.rainloop.net/).
+Rainloop is a simple, modern & fast web-based client. More info on the [official website](http://www.rainloop.net/).
 
 #### Features
 - Based on Alpine 3.3
-- Latest Rainloop **Community Edition** (stable)
-- Extremely lightweight
+- Latest Rainloop **Community Edition**
 - Contacts (DB) : sqlite, or mysql (server not built-in)
+- nginx + PHP7
+
+
+#### Build-time variables
+- **GPG_rainloop** : fingerprint of signing key
 
 #### Environment variables
-- **GID** : rainloop group id.
-- **UID** : rainloop user id.
+- **GID** : rainloop group id *(default : 991)*
+- **UID** : rainloop user id *(default : 991)*
 
 #### Volumes
-- **/rainloop/data** : rainloop's data
-
-#### Docker Compose (example)
-```
-rainloop:
-  image: wonderfall/rainloop
-  environment:
-    - GID=1000
-    - UID=1000
-  volumes:
-    - /mnt/rainloop:/rainloop/data
-
-# if using mysql as contacts database
-
-db_rainloop:
-  image: mariadb:10
-  volumes:
-    - /mnt/rainloop/db:/var/lib/mysql
-  environment:
-    - MYSQL_ROOT_PASSWORD=supersecretpassword
-    - MYSQL_DATABASE=rainloop
-    - MYSQL_USER=rainloop
-    - MYSQL_PASSWORD=supersecretpassword
-```
+- **/rainloop/data** : data files.
 
 #### Reverse proxy
 https://github.com/Wonderfall/dockerfiles/tree/master/reverse
+https://github.com/hardware/mailserver/wiki/Reverse-proxy-configuration