add link to discussions

.github/ISSUE_TEMPLATE/config.yml

@@ -1,5 +1,8 @@
 blank_issues_enabled: false
 contact_links:
-  - name: Question or Suggestions
+  - name: User request or Suggestions
+    url: https://github.com/weseek/growi/discussions
+    about: If you have feature requests or suggestions, you can create a new discussion and consider it with the community.
+  - name: Questions
     url: https://growi-slackin.weseek.co.jp/
-    about: If you have questions or suggestions, you can join our Slack team and talk about anything, anytime.
+    about: If you have questions, you can join our Slack team and talk about anything, anytime.

.github/ISSUE_TEMPLATE/user-request.md

@@ -1,25 +0,0 @@
----
-name: User request
-about: Suggest an idea for this project
-title: 'Request:'
-labels: user requests
----
-
-
-## Informations
-**Is your feature request related to a problem? Please describe.**
-A clear and concise description of what the problem is. 
-
-e.g. I'm having trouble getting immediate access to information
-
-**Describe the solution you'd like**
-A clear and concise description of what you want to realization.
-
-e.g. It's good if there is a space where everyone can access information in common.
-
-**Describe alternatives you've considered**
-A clear and concise description of any alternative solutions or features you've considered.
-
-- [ ] Custom Page In Sidebar
-  - [ ] Can be edited in `/Sidebar` path
-  - [ ] Can be described with md like a page