Issue #206: create issue templates

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,18 @@
+---
+name: Bug Report 🐛
+about: Did something not work as expected?
+---
+
+## 🐛 Bug description
+Describe your issue in detail.
+
+#### 🤔 Expected Behavior
+What should have happened?
+
+#### 👟 Steps to reproduce
+Clear steps describing how to reproduce the issue, including commands and flags run. If you are seeing an error, please include the full error message and stack trace.
+
+#### 🌍 Your environment
+Include the relevant details of your environment.
+wasm-pack version:
+rustc version:

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,10 @@
+---
+name: Feature Request 💡
+about: Suggest a new idea for wasm-pack
+---
+
+## 💡 Feature description
+Brief explanation of the requested feature.
+
+#### 💻 Basic example
+Include a basic code example if possible. Omit this section if not applicable.