Share maintainers from fluxcd/flux2

See fluxcd/flux2#515.

Signed-off-by: Michael Bridgen <[email protected]>

Author: squaremo

MAINTAINERS

@@ -2,7 +2,7 @@ The maintainers are generally available in Slack at
 https://cloud-native.slack.com in #flux (https://cloud-native.slack.com/messages/CLAJ40HV3)
 (obtain an invitation at https://slack.cncf.io/).
 
-In alphabetical order:
+This project shares maintainers from the main Flux v2 git repository,
+as listed in
 
-Hidde Beydals, Weaveworks <[email protected]> (github: @hiddeco, slack: hidde)
-Stefan Prodan, Weaveworks <[email protected]> (github: @stefanprodan, slack: stefanprodan)
+    https://github.com/fluxcd/flux2/blob/main/MAINTAINERS