add contributing guide

sig-node/CONTRIBUTING.md

@@ -0,0 +1,70 @@
+# Contributing on SIG Node
+
+Welcome!
+
+## For Kubernetes Contributions
+
+https://github.com/kubernetes/community/tree/master/contributors/guide#contributor-guide
+
+### For Enhancements 
+
+https://github.com/kubernetes/enhancements/tree/master/keps/sig-node
+
+#### Helpful Links for Sig-Node
+
+Code:  
+
+https://github.com/kubernetes/kubernetes/tree/master/cmd/kubelet  
+
+https://github.com/kubernetes/kubernetes/tree/master/pkg/kubelet  
+
+https://github.com/kubernetes/kuberentes/tree/master/pkg/probe  
+
+Development Resources:  
+
+https://github.com/kubernetes/community/tree/master/contributors/devel#table-of-contents
+
+Shared space / Sub projects:  
+
+https://github.com/kubernetes/community/tree/master/contributors/devel/sig-node  
+
+https://github.com/kubernetes/community/tree/master/sig-node#subprojects
+
+Triage:
+https://github.com/kubernetes/community/blob/master/contributors/devel/sig-node/triage.md 
+
+
+## Getting Started
+
+Task #1 : Compile kubelet
+See tips in the root Makefile    
+ 
+https://github.com/kubernetes/community/blob/master/contributors/devel/development.md#building-kubernetes
+
+Task #2 : Run a single unit test  
+
+https://github.com/kubernetes/community/blob/master/contributors/devel/development.md#unit-tests
+
+Task #3 : Explore update/verify scripts  
+
+hack/update-gofmt.sh + hack/verify-gofmt.sh  
+
+https://github.com/kubernetes/kubernetes/blob/master/hack/update-gofmt.sh  
+
+https://github.com/kubernetes/kubernetes/blob/master/hack/verify-gofmt.sh
+
+Task #4 : Explore dependencies  
+
+hack/pin-dependency.sh + hack/update-vendor.sh  
+
+https://github.com/kubernetes/community/blob/master/contributors/devel/sig-architecture/vendor.md
+
+Task #5 : Using local-up-cluster script  
+
+https://github.com/kubernetes/community/blob/master/contributors/devel/running-locally.md#starting-the-cluster  
+
+Running a local cluster  
+
+https://github.com/kubernetes/community/blob/master/contributors/devel/running-locally.md
+        
+Note: Task 5 requires Linux OS