Remove references to `app watch`, as this never made sense.

Also remove mention of 'contributed services'.

.github/CONTRIBUTING.md

@@ -10,12 +10,6 @@ Help us to maximize the effort we can spend fixing issues and adding new feature
 
 [template]: https://github.com/TheGoddessInari/rambox/blob/master/.github/ISSUE_TEMPLATE.md
 
-## Share your Custom Services
-
-If you consider there are other users that can use your Custom Service, we have a repo for this: [Rambox Services Contrib][rambox-services-contrib].
-
-[rambox-services-contrib]: https://github.com/TheGoddessInari/rambox-services-contrib
-
 ## Ask for help
 
 We have a great community in [Gitter][gitter] that can help you with any doubt or problem.

CONTRIBUTING.md

@@ -133,8 +133,6 @@ npm install
 ```
 
 ```bash
-# npm run repack
-$ sencha app watch
 $ npm start # in a new terminal
 ```
 
@@ -157,7 +155,7 @@ The services are stored inside the file `./app/store/ServicesList.js`.  Add your
 
 The logo it's referencing is located in `./resources/icons/`.
 
-To see these changes you'll need to stop your `npm start` and `sencha app watch`, and then rerun those.
+To see these changes you'll need to stop your `npm start` , and then rerun.
 
 ### Creating a Pull Request
 

README.md

@@ -241,7 +241,6 @@ Want to report a bug, request a feature, contribute to or translate Rambox? We n
 git clone https://github.com/TheGoddessInari/rambox.git
 cd rambox
 npm install
-sencha app watch
 npm start
 ```