bridge: add L2 QA issue template

.github/ISSUE_TEMPLATE/l2-bug-report.md

@@ -0,0 +1,41 @@
+---
+name: ~2021.12 L2 Bridge QA
+about: 'Use this template to file a bug for Bridge with L2 functionality'
+title: ''
+labels: L2
+assignees: ''
+---
+
+**Describe the bug:**
+A clear and concise description of what the bug is.
+
+**To reproduce:**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior:**
+A clear and concise description of what you expected to happen.
+
+**Screenshot or console log:**
+If applicable, add screenshots to help explain your problem. If possible, please also copy and paste any errors that appear in your browser's dev console. Here are [Chrome's docs](https://developers.google.com/web/tools/chrome-devtools/open) for using this feature.
+
+**Ethereum network:**
+Were you testing on Ropsten or mainnet?
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. MacOS 10.15.3]
+ - Browser [e.g. chrome, safari]
+
+**Smartphone (please complete the following information):**
+ - Device: [e.g. iPhone6]
+ - OS: [e.g. iOS8.1]
+ - Browser [e.g. stock browser, safari]
+
+**Login method (please complete the following information):**
+How you were logged into Bridge when the error occured (e.g. Metamask, Mnemonic, Master Ticket etc.)? What Ethereum address were you logged in with?
+
+**Additional context:**
+Add any other context about the problem here.