readme updates

docker/gaffer-gremlin/README.md

@@ -2,8 +2,8 @@
 
 ## Build
 
-Run the supplied `build.sh` script to pull all dependencies and build the
-container.
+Run the supplied `build.sh` script with the required environment vars to pull
+all dependencies and build the container.
 
 _Note requires Maven and Docker_
 
@@ -12,17 +12,27 @@ Optionally run each command separately to configure the containers tags etc.
 ## Configure
 
 The container will use the Gaffer Proxy store to connect to an existing graph
-and provide a Gremlin endpoint to connect to (see the [Tinkerpop docs](https://tinkerpop.apache.org/docs/3.7.1/reference/#connecting-gremlin-server)).
+and provide a Gremlin endpoint to connect to (see the [Tinkerpop docs](https://tinkerpop.apache.org/docs/current/reference/#connecting-gremlin-server)).
 
 The Gaffer graph the container will connect to can be configured as usual by
 editing the `store.properties` file, which you can also bind mount over on an
 existing image.
 
-The configuration for the Gremlin server is provided by the `[gaffer-gremlin-server.yaml](./conf/gaffer-gremlin-server.yaml)`
-this again can be modified as needed or bind mounted over.
+The configuration for the Gremlin server is provided by the `gaffer-gremlin-server.yaml`
+this again can be modified as needed or bind mounted over. Please see the
+[official Gaffer docs](https://gchq.github.io/gaffer-doc/latest/administration-guide/gaffer-deployment/gremlin/)
+for more information on configuring this image.
 
 ## Run
 
 Simply run the container to publish the Gremlin server this can then be
 connected to via the address specified in the server's yaml config to use
-Gremlin traversal.
+Gremlin traversal. The server can then be connected via the Gremlin
+console e.g. if using python
+
+```python
+from gremlin_python.process.anonymous_traversal_source import traversal
+
+g = traversal().withRemote(
+    DriverRemoteConnection('ws://localhost:8182/gremlin'))
+```