Add Keda to knowledge list

minikube/dev/kedaScale.yaml

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+apiVersion: keda.sh/v1alpha1
+kind: ScaledObject
+metadata:
+  name: prometheus-scaledobject
+  namespace: deafult
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: dev
+  triggers:
+  - type: prometheus
+    metadata:
+      # Required
+      serverAddress: http://prometheus-server.default.svc.cluster.local:80
+      metricName: promhttp_metric_handler_requests_total
+      threshold: '50'
+      query: sum(promhttp_metric_handler_requests_total{code="200",app_kubernetes_io_instance="dev"})
+  idleReplicaCount: 0                       
+  minReplicaCount: 2
+  maxReplicaCount: 10

minikube/keda/Readme.md

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+### KEDA 
+
+KEDA is a Kubernetes-based Event Driven Autoscaler. With KEDA, you can drive the scaling of any container in Kubernetes based on the number of events needing to be processed.
+