Updated the readme with instruction on how to setup env variables.
diff --git a/README.md b/README.md
index 957db17..7bfe46c 100644
--- a/README.md
+++ b/README.md
@@ -16,9 +16,9 @@
./bin/jclouds-cli
-Using the script
+Using the CLI
----------------
-To use the scirpt:
+To use the cli:
./bin/jclouds **[category]** **[action]** **[options]** **[arguments]**.
* *Categories*: node, group, image, location, hardware.
@@ -41,6 +41,17 @@
./jclouds node destroy [node id]
</pre>
+Leveraging environmental variables
+-----------------------------------
+Both in the interactive shell and cli modes, you may find repeating the provider information again and again not really friendly.
+You can completely skip those options by sepcifying them as environmental variables.
+
+Supported variables:
+* **JCLOUDS_PROVIDER**
+* **JCLOUDS_IDENTITY**
+* **JCLOUDS_CREDENTIAL**
+
+
