shows examples in readme

Author: Chris Cooper

README.md

@@ -1,2 +1,39 @@
 # cf_parameter_generator
 Do you need to write a ton of CloudFormation instead of Terraform for some reason? Is it annoying to have to type ParameterKey and ParameterValue a million times and copying the Parameter names into a parameters file? Well, now you don't have to.
+
+## Examples
+
+Printing output to command line:
+
+    $ cf_parameter_generator -f /Users/cmc/some_cf_file.json
+    [
+    	{
+    		"ParameterKey": "AWSaccount",
+    		"ParameterValue": ""
+    	},
+    	{
+    		"ParameterKey": "AmazonEC2FullAccessARN",
+    		"ParameterValue": ""
+    	},
+    	{
+    		"ParameterKey": "AmazonRoute53FullAccessARN",
+    		"ParameterValue": ""
+    	},
+    	{
+    		"ParameterKey": "AppTierFleetSize",
+    		"ParameterValue": ""
+    	},
+    	{
+    		"ParameterKey": "AppTierInstanceType",
+    		"ParameterValue": ""
+    	},
+    	{
+    		"ParameterKey": "ApplicationName",
+    		"ParameterValue": ""
+    	}
+    ]
+
+Saving output to a new file (will overwrite existing)
+
+    $ cf_parameter_generator -f local_file.json -o /Path/to/output.json
+