Updated README to add pip instructions

README.md

@@ -2,13 +2,19 @@
 
 Script to extract the current API documentation from Canvas and generate an importable Postman collection.
 
+You'll need the ```requests``` python module to implement this.
+
+`pip install requests`
+
+To generate the file:
+
 `python3 canvas-api-postman.py`
 
 Outputs an 'output.json' file that is used for import into Postman
 
 In Postman choose Import -> Import File -> navigate to this folder
 
-Once in Postman you'll need to set ```domian``` and ```user_token``` variables.
+Once in Postman you'll need to set ```domain``` and ```user_token``` variables.
 
 For example: