Update issue templates (#98)

Signed-off-by: Jay Guo <guojiannan1101@gmail.com>

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,30 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+<!--
+Before you submit a bug, please make sure you read and understand our documentations, and you can successfully submit transaction with Fabric `peer` cli to the target network. This would help us verify that your network is functioning properly.
+-->
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1.
+2.
+3.
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Logs**
+Attach logs from Tape/Peer/Orderer here. **And please format them with markdown!**
+
+**Additional context**
+Add any other context about the problem here.