Add FinOps, fix cloud-cost section

resources/topic-graph.mmd

@@ -180,12 +180,16 @@ graph TD
       MON --> Tra[Tracing]
         Tra --> OPT[Open Tracing]
         Tra --> Jae[Jaegger]
-  SRE --> SVL[Serverless]
-    SVL --> SAM[Serverless Application Model]
-    SVL --> LBD[Lambda]
-  SRE --> SEC[Security]
-    SEC --> FIR[Firewall]
-      FIR --> WAF[Web Application Firewall]
-    SEC --> ENC[Encryption]
-    SEC --> SECMON[Monitoring]
-    SEC --> CERT[Certificates]
+    OPS --> SVL[Serverless]
+      SVL --> SAM[Serverless Application Model]
+      SVL --> LBD[Lambda]
+      SEC --> ENC[Encryption]
+      SEC --> SECMON[Monitoring]
+      SEC --> CERT[Certificates]
+    OPS --> SEC[Security]
+      SEC --> FIR[Firewall]
+        FIR --> WAF[Web Application Firewall]
+    OPS --> COST[Cost]
+      COST --> CloudCos[Cloud]
+        CloudCos --> FOps[FinOps]
+          FOps --> AWS