Update issue templates to enable discussions.

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,6 +1,6 @@
 ---
-name: Bug report
-about: Create a report to help us improve
+name: 🐛 Bug Report
+about: If something isn't working as expected 🤔
 title: ''
 labels: bug, pending verification
 assignees: ''
@@ -8,10 +8,11 @@ assignees: ''
 ---
 
 #### Describe the bug
+<!-- A clear and concise description of what the bug is. -->
 
-A clear and concise description of what the bug is.
+#### Platform
+<!-- Check all that apply (change to `[x]`) -->
 
-#### Check all that apply (change to `[x]`)
 - [ ] Windows
 - [ ] macOS
 - [ ] Linux

.github/ISSUE_TEMPLATE/compilation.md

@@ -1,17 +1,25 @@
 ---
-name: Compilation issue
-about: Report a problem when compiling the code
+name: 😱 Compilation issue
+about: Report a problem when compiling the code 😬
 title: ''
 labels: 'compilation'
 assignees: ''
 
 ---
 
-#### Describe your question
+#### Describe your issue
+<!-- Be sure to include any log file that may help use diagnose the issue -->
 
-...
 
-#### Check all that apply (change to `[x]`)
+#### Checklist
+<!-- Check all that apply (change to `[x]`) -->
+
+- [ ] I have read the [bug report](https://libigl.github.io/bug-report/)
+- [ ] CMake issue: I have tried with a fresh clone/empty build directory
+
+#### Platform
+<!-- Check all that apply (change to `[x]`) -->
+
 - [ ] Windows
 - [ ] macOS
 - [ ] Linux

.github/ISSUE_TEMPLATE/config.yml

@@ -1 +1,8 @@
 blank_issues_enabled: false
+contact_links:
+  - name: 🚀 Feature Request
+    url: https://github.com/libigl/libigl/discussions/new?category_id=32617689
+    about: Share ideas for new features
+  - name: ❓ Ask a Question
+    url: https://github.com/libigl/libigl/discussions/new?category_id=32617688
+    about: Ask the community for help

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,17 +0,0 @@
----
-name: Feature request
-about: Suggest an idea for this project
-title: ''
-labels: 'enhancement'
-assignees: ''
-
----
-
-#### Describe your feature request
-
-...
-
-#### Check all that apply (change to `[x]`)
-- [ ] Windows
-- [ ] macOS
-- [ ] Linux

.github/ISSUE_TEMPLATE/question.md

@@ -1,17 +0,0 @@
----
-name: Question
-about: Ask question about the tutorial or documentation
-title: ''
-labels: 'question'
-assignees: ''
-
----
-
-#### Describe your question
-
-...
-
-#### Check all that apply (change to `[x]`)
-- [ ] Windows
-- [ ] macOS
-- [ ] Linux

.github/pull_request_template.md

@@ -1,9 +1,11 @@
 Fixes # .
 
-[Describe your changes and what you've already done to test it.]
+<!-- Describe your changes and what you've already done to test it. -->
 
 
-#### Check all that apply (change to `[x]`)
+#### Checklist
+<!-- Check all that apply (change to `[x]`) -->
+
 - [ ] All changes meet [libigl style-guidelines](https://libigl.github.io/style-guidelines/).
 - [ ] Adds new .cpp file.
 - [ ] Adds corresponding unit test.