New issue templates (#1308)

* New issue templates

* Update bug_report.md

Author: Conengmo

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,36 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+
+```
+[ Include a code snippet that produces your bug. Make it standalone, we should be able to run it. ]
+
+[ Include a data sample or link to your data if necessary to run the code ]
+
+```
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Environment (please complete the following information):**
+ - Browser [e.g. chrome, firefox]
+ - Jupyter Notebook or html files?
+ - folium version (check it with `print(folium.__version__)`)
+
+**Additional context**
+Add any other context about the problem here.
+
+**Possible solutions**
+List any solutions you may have come up with.
+
+folium is maintained by volunteers. Can you help making a fix for this issue?

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,23 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.
+
+**Implementation**
+folium is maintained by volunteers. Can you help make a PR if we want to implement this feature?