update GitHub templates (#601)

.github/ISSUE_TEMPLATE/bug_report.md

@@ -11,26 +11,32 @@ assignees: ''
 1. Tensorboard not showing in Jupyter-notebook see [issue 79](https://github.com/williamFalcon/pytorch-lightning/issues/79).    
 2. PyTorch 1.1.0 vs 1.2.0 support [see FAQ](https://github.com/williamFalcon/pytorch-lightning#faq)    
 
-**Describe the bug**
+### Describe the bug
 A clear and concise description of what the bug is.
 
-**To Reproduce**
+#### To Reproduce
 Steps to reproduce the behavior:
 1. Go to '...'
-2. Click on '....'
+2. Run '....'
 3. Scroll down to '....'
 4. See error
 
-**Expected behavior**
+#### Code sample
+Ideally attach a minimal code sample to reproduce the decried issue. 
+[Minimal means having the shortest code but still preserving the bug]
+
+#### Expected behavior
 A clear and concise description of what you expected to happen.
 
-**Screenshots**
+#### Screenshots
 If applicable, add screenshots to help explain your problem.
 
-**Desktop (please complete the following information):**
- - OS: [e.g. iOS]
- - Browser [e.g. chrome, safari]
- - Version [e.g. 22]
+### Environment information
 
-**Additional context**
+Desktop (please complete the following information):
+ - OS: [e.g. iOS, Linux, Win]
+ - Packaging [e.g. pip, conda]
+ - Version [e.g. 0.5.2.1]
+
+### Additional context
 Add any other context about the problem here.

.github/ISSUE_TEMPLATE/typos-and-doc-fixes.md

@@ -7,11 +7,12 @@ assignees: ''
 
 ---
 
+## Typos and docs fixes
+
 For typos and doc fixes, please go ahead and:
 
 1. Create an issue.
 2. Fix the typo.   
 3. Submit a PR.
 
-
 Thanks!