Update Readme.md

Readme.md

@@ -1,9 +1,15 @@
-Ivet
+Summary
 =======
 
-Ivet is command line tool to generate a schema for a janusgraph database and apply this schema. It has been inspired from Doctrine behaviour.
+Ivet is a command line tool created to generate a schema for a janusgraph database and apply this schema. It has been inspired from Doctrine behaviour.
+The **generate** command creates a json file containing commands to execute. The file can be manually modified if you find migration is not complete or does not cover all you deserves.
+To keep trace of all applied migrations, migration names are saved into janusgraph server when **upgrade** is called.
+You can check at any moment the **list** of migrations both applied and not.
 
-Available commands:
+A **test** command is used to populate database either for personnal tests or unit tests. Do not use it in your production environment.
+
+Available commands
+=======
 * **generate**
 	* **dir*** Dlls to analyze
 	* **output*** Directory where to put migration file
@@ -20,3 +26,7 @@ Available commands:
 * test* _Must not be used in Prod. This command is only used to apply a schema to a Janusgraph server_
 	* **ip** _localhost_
 	* **port** _8182_
+
+Docker image
+=======
+https://hub.docker.com/r/dlecoconnier/ivet