Add note about maintenance mode (#996)

.github/ISSUE_TEMPLATE/feature_request.md

@@ -7,23 +7,9 @@ assignees: ''
 
 ---
 
-## Summary
-
 <!--
-A short one-sentence summary of the feature you would like to have in
-Threema Web.
--->
-
-## Detailed Description
-
-<!---
-A clear and concise description of the proposed feature.
-Describe the solution you'd like.
-Describe alternatives you've considered.
--->
-
-## Additional context
-
-<!---
-Add any other context or screenshots about the feature request here.
+NOTE: Threema Web is in maintenance mode while we are working on a new solution
+that should resolve some of the long-standing issues we were having with
+Threema Web. We will still do regular maintenance and fix critical bugs, but
+for now there will be no major new features.
 -->

README.md

@@ -19,13 +19,18 @@ Signaling and data is end-to-end encrypted with [SaltyRTC](https://saltyrtc.org/
 For more information, see the [Threema Cryptography
 Whitepaper](https://threema.ch/press-files/2_documentation/cryptography_whitepaper.pdf).
 
+**Note:** Threema Web is in maintenance mode while we are working on a new
+solution that should resolve some of the long-standing issues we were having
+with Threema Web. We will still do regular maintenance and fix critical bugs,
+but for now there will be no major new features.
+
 
 ## Bug Reports and Feature Requests
 
-If you find a bug in Threema Web or want to request a new feature, feel free to
-[open an issue](https://github.com/threema-ch/threema-web/issues/new) on
-GitHub. Please make sure that your bug report or feature request hasn't already
-been filed by using the search function.
+If you find a bug in Threema Web, feel free to [open an
+issue](https://github.com/threema-ch/threema-web/issues/new) on GitHub. Please
+make sure that your bug report hasn't already been filed by using the search
+function.
 
 Express your personal opinion regarding priority by reacting with :+1: in a
 particular issue, such as [this one](https://github.com/threema-ch/threema-web/issues/58).