update issue template. (#1117)

* update issue template.

* replace Node with Go.

Author: rghetia

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,21 +1,26 @@
 ---
 name: Bug report
 about: Create a report to help us improve
-
+labels: bug, triage-me
 ---
 
-**Describe the bug**
-A clear and concise description of what the bug is.
+Please answer these questions before submitting a bug report.
+
+### What version of OpenCensus are you using?
+
+
+### What version of Go are you using?
+
+
+### What did you do?
+If possible, provide a recipe for reproducing the error.
+
+
+### What did you expect to see?
+
 
-**To Reproduce**
-Steps to reproduce the behavior:
-1. Go to '...'
-2. Click on '....'
-3. Scroll down to '....'
-4. See error
+### What did you see instead?
 
-**Expected behavior**
-A clear and concise description of what you expected to happen.
 
-**Additional context**
+### Additional context
 Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,12 +1,13 @@
 ---
 name: Feature request
 about: Suggest an idea for this project
-
+labels: feature-request, triage-me
 ---
 
 **NB:** Before opening a feature request against this repo, consider whether the feature should/could be implemented in other the OpenCensus libraries in other languages. If so, please [open an issue on opencensus-specs](https://github.com/census-instrumentation/opencensus-specs/issues/new) first.
 
 
+
 **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 [...]