Index: .github/ISSUE_TEMPLATE/config.yml
==================================================================
--- .github/ISSUE_TEMPLATE/config.yml
+++ .github/ISSUE_TEMPLATE/config.yml
@@ -12,10 +12,25 @@
     url: https://objfw.nil.im/forum
     about: Please use this if you have questions or want support.
   - name: ObjFW Matrix Room
     url: https://matrix.to/#/%23objfw:nil.im
     about: Please use this for interactive questions and support.
-  - name: ObjFW IRC Channel
-    url: https://webchat.freenode.net/?channels=objfw
+  - name: ObjFW Slack Channel
+    url: https://objfw.nil.im/slack
+    about:
+      Please use this for interactive questions and support - it is bridged to 
+      the Matrix room above.
+  - name: ObjFW Discord Channel
+    url: https://objfw.nil.im/discord
+    about:
+      Please use this for interactive questions and support - it is bridged to 
+      the Matrix room above.
+  - name: ObjFW Telegram Room
+    url: https://t.me/objfw
+    about:
+      Please use this for interactive questions and support - it is bridged to 
+      the Matrix room above.
+  - name: ObjFW Gitter Room
+    url: https://gitter.im/ObjFW/ObjFW
     about:
       Please use this for interactive questions and support - it is bridged to 
       the Matrix room above.

Index: README.md
==================================================================
--- README.md
+++ README.md
@@ -336,11 +336,11 @@
   In order to build the documentation yourself (necessary to have documentation
   for trunk / master), you need to have [Doxygen](https://www.doxygen.nl)
   installed. Once installed, you can build the documentation from the root
   directory of the repository:
 
-    $ doxygen >/dev/null
+    $ make docs
 
 
 <h1 id="bugs">Bugs and feature requests</h1>
 
   If you find any bugs or have feature requests, please
@@ -354,14 +354,18 @@
 
   If you have any questions about ObjFW or would like to talk to other ObjFW
   users, the following venues are available:
 
    * The [forum](https://objfw.nil.im/forum)
-   * A [Matrix](https://matrix.to/#/%23objfw:nil.im) room
-   * An [IRC channel](irc://chat.freenode.net/#objfw) on Freenode (`#objfw`,
-     [web chat](https://webchat.freenode.net/?channels=objfw)), bridged to the
-     Matrix room above
+   * A [Matrix room](https://matrix.to/#/%23objfw:nil.im)
+   * A [Slack channel](https://objfw.nil.im/slack), bridged to the Matrix room
+     above
+   * A [Discord channel](https://objfw.nil.im/discord), bridged to the Matrix
+     room above
+   * A [Telegram room](https://t.me/objfw), bridged to the Matrix room above
+   * A [Gitter room](https://gitter.im/ObjFW/ObjFW), bridged to the Matrix room
+     above
 
   Please don't hesitate to join any or all of those!
 
 
 <h1 id="commercial-use">Commercial use</h1>