Update issue templates (google#290)

* Update issue templates

* Fix formatting in bug report template

Correct formatting of model information section.

Author: dpasiukevich

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,39 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+** Please make sure you read the contribution guide and file the issues in the right place. **
+[Contribution guide.](https://google.github.io/adk-docs/contributing-guide/)
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Please share a minimal code and data to reproduce your problem.
+Steps to reproduce the behavior:
+1. Install '...'
+2. Run '....'
+3. Open '....'
+4. Provide error or a stacktrace
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. macOS, Linux, Windows]
+ - Go version:
+ - ADK version:
+
+**Model Information:**
+ - Which model is being used (e.g. gemini-2.5-pro)
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,23 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: enhancement
+assignees: ''
+
+---
+
+** Please make sure you read the contribution guide and file the issues in the right place. **
+[Contribution guide.](https://google.github.io/adk-docs/contributing-guide/)
+
+**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.