Add OLM API tier support mapping

Author: adellape

modules/api-support-tiers-mapping.adoc

@@ -123,5 +123,28 @@ API groups that end with the suffix `monitoring.coreos.com` have the following m
 |`v1`
 |Tier 1
 
+|===
+endif::microshift[]
+
+ifndef::microshift[]
+[id="mapping-support-tiers-to-olm-api-groups_{context}"]
+== Support for Operator Lifecycle Manager API groups
+
+Operator Lifecycle Manager (OLM) provides APIs that include API groups with the suffix `operators.coreos.com`. These APIs have the following mapping:
+
+[cols="2",options="header"]
+|===
+|API version example
+|API tier
+
+|`v2`
+|Tier 1
+
+|`v1`
+|Tier 1
+
+|`v1alpha1`
+|Tier 1
+
 |===
 endif::microshift[]