Link to abaplint collector UML added (abap-observability-tools#146)

docs/README.md

@@ -53,6 +53,8 @@ The URL should look like `http://vhcalnplci:8000/amp/metrics?sap-client=001&scen
 
 The collectors classes are marked with a C e.g. zcl_amp_c_runtime_errors.
 
+All collectors are in this [UML](https://abaplint.app/rest/stats/abap-observability-tools/abap-metrics-provider/oo/ZIF_AMP_COLLECTOR/uml)
+
 ## runtimte errors (ST22)
 
 [zcl_amp_c_runtime_errors](../src/zamp_collector/zcl_amp_c_runtime_errors.clas.abap)
@@ -112,4 +114,4 @@ Collect count of batch sessions for the current day.
 
 [zcl_amp_c_work_processes](../src/zamp_collector/zcl_amp_c_work_processes.clas.abap)
 
-Collect count of all work process types of all servers
+Collect count of all work process types of all servers