Added fluency, copper and fixed readme for postman collection conversions

Author: frikky

postman/README.md

@@ -12,7 +12,7 @@ Docs: https://joolfe.github.io/postman-to-openapi/
 2. **Run p2o (postman-2-openapi)**
 This example runs towards an Automox Postman Collection, translated to OpenAPI 
 ```
-~/.npm-global/bin/p2o Automox\ API.postman_collection.json -f automox.yaml
+~/.npm-global/lib/node_modules/postman-to-openapi/bin/cli.js fluency.json -f fluency.yaml
 ```
 
 PS: It may be located in a different location after install. Check the logs from the install.