Improve readme

README.md

@@ -27,7 +27,7 @@ You need define the Odoo API-KEY and URL as environment variables. You need defi
 
 ```
 ODOO_BASEURL=<YOUR ODOO HOST>/api
-ODOO_APIKEY=<YOUR OC USER>
+ODOO_APIKEY=<YOUR ODOO API KEY>
 ```
 
 If this envvars are not defined, a exception will be raised with the name of the envvar not defined.
@@ -73,7 +73,7 @@ More info about the API-KEY in [Auth API Key](https://github.com/OCA/server-auth
 
 ### Create new mapper
 
-Create a class that expose a dict objecti with the next structure:
+Create a class that exposes a dict object with the next structure:
 
 #### Create a SubscriptionRequest
 
@@ -191,9 +191,9 @@ With VRC we can catch the HTTP responses and then, execute the tests using them.
 
 To add a new test:
 
-* Exepose the needes envvars. Looks the Configuration Environment section
+* Expose the needed envvars. Look for them at the [Configuration Environment section](#configuration-environment)
 * Execute the tests using `pytest` command:
-* If you are writing a new tests that is making requests, you should run:
+* If you are writing a new test that is making requests, you should run:
 
 ```
 $ pytest --record-mode=once path/to/your/test