Guide the user more in the bug report

Would probably permit to have the version more often and
to have something to do a functional test with more often
too.

Author: Pierre-Sassoulas

.github/ISSUE_TEMPLATE/1_Bug_report.md

@@ -10,19 +10,54 @@ about: Report a bug in pylint
   Before you submit this, make sure that the issue doesn't already exist
   or if it is not closed.
 
-  Is your issue fixed on the preview release?: pip install pylint astroid --pre -U
-
+  Is your issue fixed on the preview release?:
+    pip install pylint astroid --pre -U
 -->
 
 ### Steps to reproduce
-1.
-2.
-3.
+
+<!--
+Given a file `a.py`:
+```python
+# (Disable message unrelated to the bug)
+# pylint: disable=missing-docstring,...
+
+```
+
+Given multiple files:
+```
+__init__.py
+a.py
+module\
+    __init__.py
+    b.py
+    c.py
+```
+-->
 
 ### Current behavior
+<!--
+Result of `pylint a.py`:
+```
 
+```
+-->
 
 ### Expected behavior
 
 
 ### pylint --version output
+
+Result of `pylint --version` output:
+```
+
+```
+
+<!--
+Additional dependencies:
+```
+pandas==0.23.2
+marshmallow==3.10.0
+...
+```
+-->

.github/ISSUE_TEMPLATE/2_Feature_request.md

@@ -17,6 +17,5 @@ A clear and concise description of what the problem is.
 ### Describe the solution you'd like
 A clear and concise description of what you want to happen.
 
-
 ### Additional context
 Add any other context about the feature request here.