Document how to suggest a new topic for the group

Signed-off-by: Michal Hajas <[email protected]>

.github/ISSUE_TEMPLATE/topic-suggestion.yml

@@ -0,0 +1,17 @@
+name: Topic suggestion
+description: Suggest a new topic to be discussed by the SRE special interest group
+title: "[TOPIC] "
+labels: ["topic"]
+body:
+  - type: textarea
+    attributes:
+      label: Describe the topic
+      description: Provide a clear and concise description of what topic should be about
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Anything else?
+      description: Links? References? Anything that will give us more context about the topic you are suggesting!
+    validations:
+      required: false

README.adoc

@@ -18,6 +18,10 @@ Desired outputs:
 - What are the right metrics of Keycloak to watch and how to visualize them in a dashboard?
 - Can we simplify how Keycloak is configured and set up?
 
+=== Proposing a new topic
+
+If you have a topic you would like to discuss with the group, please https://github.com/keycloak/keycloak-sre-sig/issues/new?assignees=&labels=topic&projects=&template=topic-suggestion.yml[open a topic suggestion issue] in this repository.
+
 == Meeting notes
 
 The meeting notes are available at https://www.keycloak.org/keycloak-sre-sig/meetings/