add readme to repo manager

pkg/de-p1st-repo/README.md

@@ -0,0 +1,32 @@
+# arch-repo manager
+
+## setup
+
+Install `de-p1st-repo` on your local machine as well as on
+a remote server.
+
+Adjust `/etc/de-p1st-repo/*.conf` according to your needs.
+
+Run a webserver on the server to serve static content:
+
+* https://hub.docker.com/_/nginx/ -> Hosting some simple static content
+* `sudo docker run --name arch-repo -v /mnt/data/live/arch-repo:/usr/share/nginx/html:ro -d nginx`
+
+Add the newly created mirror to your `/etc/pacman.conf`:
+
+```
+[de-p1st]
+SigLevel = Optional TrustAll
+Server = https://arch.p1st.de
+```
+
+## normal usage
+
+1. Build packages on local machine
+
+* `aur sync -c SOME_AUR_PACKAGE`
+* `aur sync -c -u`
+
+2. Push new packages to remote repository
+
+* `arch-repo-push-new`