Replace IRC with Discord

Discord has more users. IRC traffic has ground to a halt.

Signed-off-by: Bruce Mitchell <bruce.mitchell@linux.vnet.ibm.com>
Change-Id: I3020f974de963bfdd74c2afbd64cd9e200a4be91
diff --git a/MAINTAINERS b/MAINTAINERS
index eea7400..1e4e918 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -17,7 +17,7 @@
 
     Section entries are structured according to the following scheme:
 
-    X:  NAME <EMAIL_USERNAME@DOMAIN> <IRC_USERNAME!>
+    X:  NAME <EMAIL_USERNAME@DOMAIN> <DISCORD_USERNAME!>
     X:  ...
     .
     .
@@ -27,10 +27,10 @@
     organization; FILE_PATH is a file path within the repository, possibly with
     wildcards; X is a tag of one of the following types:
 
-    M:  Denotes maintainer; has fields NAME <EMAIL_USERNAME@DOMAIN> <IRC_USERNAME!>;
+    M:  Denotes maintainer; has fields NAME <EMAIL_USERNAME@DOMAIN> <DISCORD_USERNAME!>;
         if omitted from an entry, assume one of the maintainers from the
         MAINTAINERS entry.
-    R:  Denotes reviewer; has fields NAME <EMAIL_USERNAME@DOMAIN> <IRC_USERNAME!>;
+    R:  Denotes reviewer; has fields NAME <EMAIL_USERNAME@DOMAIN> <DISCORD_USERNAME!>;
         these people are to be added as reviewers for a change matching the repo
         path.
     F:  Denotes forked from an external repository; has fields URL.
@@ -50,7 +50,7 @@
     - Patches must not have an unresolved -1 vote by any maintainer.
     - Patches should have all maintainers added for visibility.
     - Patches should include unit tests where possible.
-    - Feel free to ping on IRC about patches that look good but have not
+    - Feel free to ping on DISCORD about patches that look good but have not
       received +2
 
 Design approval rules: