k8s taint and toleration

Author: prateekpandey14

Diff for: go/K8s_Scheduler.md

@@ -4,3 +4,4 @@
 4. https://jvns.ca/blog/2017/06/04/learning-about-kubernetes/
 5. https://embano1.github.io/post/sched-reconcile/
 6. https://github.com/IBM/k8s-custom-scheduler/tree/master/scheduler
+7. https://medium.com/@betz.mark/herding-pods-taints-tolerations-and-affinity-in-kubernetes-2279cef1f982