Updated README with example usage, and info about scripts.

snf-tools/README

@@ -4,8 +4,29 @@ README
 snf-burnin is an integration testing tool for a running Synnefo deployment. 
 It runs test scenarios from the following categories:
 
-*Authentication
-*Images
-*Flavors
-*Servers
-*Networking
+- Authentication
+- Images
+- Flavors
+- Servers
+- Networking
+
+======
+Usage
+======
+
+Example:
+--------
+snf-burnin --token=TOKEN --image-id=IMAGE-ID --log-folder=LOG_FOLDER
+
+
+For more options:
+------------------
+snf-burnin --help
+
+
+Example scripts
+-----------------
+Under /snf-tools/conf/ you can find example scripts for automating snf-burnin testing using cron.
+
+- **snf-burnin-run.sh** runs snf-burnin with the given parameters, deletes stale instances (servers, networks) from old runs and delete logs older than a week. It aborts if snf-burnin runs for longer than expected. 
+- **snf-burnin-output.sh** checks for failed snf-burnin tests the last 30 minutes in a given log folder. Exit status is 0 if no failures where encountered, else exit status is 1.