Fixes #86.

.github/CONTRIBUTING.md

@@ -48,12 +48,13 @@ You'll have to:
 
 - Configure fabric and add your `apiKey` and `apiSecret` in the `fabric.properties` file.
 - Create a firebase project and add the `google-services.json` to the `app/` folder.
-- Define the following some parameters either in `~/.gradle/gradle.properties` or as gradle parameters (see the examples)
+- Define some parameters either in `~/.gradle/gradle.properties` or as gradle parameters (see the examples)
 
     - mercuryApiKey: A [Mercury](https://mercury.postlight.com/web-parser/) web parser api key for the internal browser
     - feedbackEmail: An email to receive users  feedback.
     - sourceUrl: an url to the source code, used in the settings. **It can be empty.**
     - trackerUrl: an url to the tracker, used in the settings. **It can be empty.**
+    - githubToken: a github token used to report issues from within the app. [Details  here](https://github.com/heinrichreimer/android-issue-reporter#how-to-create-a-bot-key). **It can be empty.** 
     - appLoginUrl, appLoginUsername and appLoginPassword: url, username and password of a selfoss instance. **These are only used for tests. They can be empty if you don't test API calls.**
 
 ### Examples:
@@ -67,10 +68,11 @@ mercuryApiKey="LONGAPIKEY"
 feedbackEmail="EMAIL"
 sourceUrl="URLSOURCE" # It can be empty.
 trackerUrl="URLTRACKER" # It can be empty.
+githubToken="GITHUBTOKEN" # It can be empty or use https://github.com/heinrichreimer/android-issue-reporter#how-to-create-a-bot-key to generate one
 ```
 
 #### As gradle parameters
 
 ```
-./gradlew .... -P appLoginUrl="URL" -P appLoginUsername="LOGIN" -P appLoginPassword="PASS" -P mercuryApiKey="LONGAPIKEY" -P feedbackEmail="EMAIL" -P sourceUrl="URLSOURCE" -P trackerUrl="URLTRACKER"
+./gradlew .... -P appLoginUrl="URL" -P appLoginUsername="LOGIN" -P appLoginPassword="PASS" -P mercuryApiKey="LONGAPIKEY" -P feedbackEmail="EMAIL" -P sourceUrl="URLSOURCE" -P trackerUrl="URLTRACKER" -P githubToken="GITHUBTOKEN"
 ```