feat(freben): add handling and docs for entity references

microsite/sidebars.json

@@ -43,6 +43,7 @@
           "features/software-catalog/configuration",
           "features/software-catalog/system-model",
           "features/software-catalog/descriptor-format",
+          "features/software-catalog/references",
           "features/software-catalog/well-known-annotations",
           "features/software-catalog/extending-the-model",
           "features/software-catalog/external-integrations",
@@ -158,7 +159,8 @@
       "architecture-decisions/adrs-adr005",
       "architecture-decisions/adrs-adr006",
       "architecture-decisions/adrs-adr007",
-      "architecture-decisions/adrs-adr008"
+      "architecture-decisions/adrs-adr008",
+      "architecture-decisions/adrs-adr009"
     ],
     "Contribute": ["../CONTRIBUTING"],
     "Support": ["overview/support"],