Add minimal list of requirements for SAST analyzers

doc/user/application_security/sast/analyzers.md

@@ -43,6 +43,18 @@ dedicated containers for each analysis.
 SAST is pre-configured with a set of **default images** that are maintained by
 GitLab, but users can also integrate their own **custom images**.
 
+## SAST analyzer features
+
+For an analyzer to be considered Generally Available, it is expected to minimally 
+support the following features:
+
+- [Customizable configuration](index.md#available-variables)
+- [Customizable rulesets](index.md#customize-rulesets)
+- [Scan projects](index.md#supported-languages-and-frameworks)
+- [Multi-project support](index.md#multi-project-support)
+- [Offline support](index.md#running-sast-in-an-offline-environment)
+- [Emits JSON report format](index.md#reports-json-format)
+
 ## Official default analyzers
 
 Any custom change to the official analyzers can be achieved by using a