update README for drone 0.7

DOCS.md

@@ -68,3 +68,23 @@ The example above illustrates a situation where an app package (`app.tar.gz`) wi
 
 ## Important
 The script passed to **script** will be executed on remote machines directly after rsync completes to deploy the files. It will be executed step by step until a command returns a non-zero exit-code. If this happens, the entire plugin will exit and fail the build.
+
+
+## Key in drone >= 0.7
+
+For drone 0.7 or drone 0.8:
+register your key with:
+``` bash
+drone secret update \
+   --repository your/repo \
+   --name plugin_key \
+   --value @./id_rsa.pub \
+   --image drillster/drone-rsync
+```
+
+Do not add a `key` entry in `.drone`, but add:
+```
+secrets: [ plugin_key ]
+```
+
+Using any other name will not work.

README.md

@@ -1,7 +1,7 @@
 # drone-rsync
 [![drone-rsync on Docker Hub](https://img.shields.io/docker/automated/drillster/drone-rsync.svg)](https://hub.docker.com/r/drillster/drone-rsync/)
 
-This is a pure Bash [Drone](https://github.com/drone/drone) 0.5 plugin to sync files to remote hosts.
+This is a pure Bash [Drone](https://github.com/drone/drone) >= 0.5 plugin to sync files to remote hosts.
 
 For more information on how to use the plugin, please take a look at [the docs](https://github.com/Drillster/drone-rsync/blob/master/DOCS.md).