update alpine version to 3.13 and upgrade rainloop to 1.15.0 (#3)

* update alpine version to 3.13 and upgrade rainloop to 1.15.0

* change old hardware links to mailserver2

Author: akoscomp

Dockerfile

@@ -1,14 +1,14 @@
-FROM alpine:3.11
+FROM alpine:3.13
 
 LABEL description "Rainloop is a simple, modern & fast web-based client"
 
-ARG RAINLOOP_VER=1.14.0
+ARG RAINLOOP_VER=1.15.0
 
 ARG GPG_FINGERPRINT="3B79 7ECE 694F 3B7B 70F3  11A4 ED7C 49D9 87DA 4591"
 
 ENV UID=991 GID=991 UPLOAD_MAX_SIZE=25M LOG_TO_STDOUT=false MEMORY_LIMIT=128M
 
-RUN echo "@community https://nl.alpinelinux.org/alpine/v3.10/community" >> /etc/apk/repositories \
+RUN echo "@community https://nl.alpinelinux.org/alpine/v3.13/community" >> /etc/apk/repositories \
  && apk -U upgrade \
  && apk add -t build-dependencies \
     gnupg \

README.md

@@ -1,4 +1,4 @@
-# hardware/rainloop
+# mailserver2/rainloop
 
 ![](https://i.goopics.net/nI.png)
 
@@ -37,10 +37,10 @@ Rainloop is a simple, modern & fast web-based client. More details on the [offic
 
 ```yml
 # Full example :
-# https://github.com/hardware/mailserver/blob/master/docker-compose.sample.yml
+# https://github.com/mailserver2/mailserver/blob/master/docker-compose.sample.yml
 
 rainloop:
-  image: hardware/rainloop
+  image: mailserver2/rainloop
   container_name: rainloop
   volumes:
     - /mnt/docker/rainloop:/rainloop/data
@@ -50,5 +50,4 @@ rainloop:
 
 #### How to setup
 
-https://github.com/hardware/mailserver/wiki/Rainloop-initial-configuration
-
+https://github.com/mailserver2/mailserver/wiki/Rainloop-initial-configuration