main and develop branches (#2542)

- `master` -> `main`
- `develop` is now CI'd

Author: gpleiss

.github/ISSUE_TEMPLATE/---documentation-examples.md

@@ -21,4 +21,4 @@ assignees: ''
 ** Think you know how to fix the docs? ** (If so, we'd love a pull request from you!)
 
 - Link to [GPyTorch documentation](https://gpytorch.readthedocs.io)
-- Link to [GPyTorch examples](https://github.com/cornellius-gp/gpytorch/tree/master/examples)
+- Link to [GPyTorch examples](https://github.com/cornellius-gp/gpytorch/tree/main/examples)

.github/workflows/run_test_suite.yml

@@ -5,9 +5,9 @@ name: Run Test Suite
 
 on:
   push:
-    branches: [ master ]
+    branches: [ main, develop ]
   pull_request:
-    branches: [ master ]
+    branches: [ main, develop ]
   workflow_call:
 
 jobs:

README.md

@@ -88,7 +88,7 @@ If you use GPyTorch, please cite the following papers:
 
 ## Contributing
 
-See the contributing guidelines [CONTRIBUTING.md](https://github.com/cornellius-gp/gpytorch/blob/master/CONTRIBUTING.md)
+See the contributing guidelines [CONTRIBUTING.md](https://github.com/cornellius-gp/gpytorch/blob/main/CONTRIBUTING.md)
 for information on submitting issues and pull requests.