doc/sdk-cli-reference.md: add docs for cli cmd build

started documentation for operator-sdk and added docs for build cmd

Fixes #266

doc/sdk-cli-reference.md

@@ -0,0 +1,51 @@
+# CLI Guide
+
+```
+Usage:
+  operator-sdk [command]
+```
+
+
+## build
+
+### Args
+  * image - is the container image to be built, e.g. "quay.io/example/operator:v0.0.1". This image will be automatically set in the deployment manifests.
+
+### Flags
+* `-h, --help` - help for build
+
+### Use
+
+The operator-sdk build command compiles the code, builds the executables,
+and generates Kubernetes manifests. After build completes, the image would be built locally in docker. Then it needs to be pushed to remote registry.
+
+### Example:
+
+#### Build
+```
+operator-sdk build quay.io/example/operator:v0.0.1
+
+// Output:
+building example-operator...
+
+building container quay.io/example/operator:v0.0.1...
+Sending build context to Docker daemon  163.9MB
+Step 1/4 : FROM alpine:3.6
+ ---> 77144d8c6bdc
+Step 2/4 : ADD tmp/_output/bin/example-operator /usr/local/bin/example-operator
+ ---> 2ada0d6ca93c
+Step 3/4 : RUN adduser -D example-operator
+ ---> Running in 34b4bb507c14
+Removing intermediate container 34b4bb507c14
+ ---> c671ec1cff03
+Step 4/4 : USER example-operator
+ ---> Running in bd336926317c
+Removing intermediate container bd336926317c
+ ---> d6b58a0fcb8c
+Successfully built d6b58a0fcb8c
+Successfully tagged quay.io/example/operator:v0.0.1
+```
+
+#### Push
+`docker push quay.io/example/operator:v0.0.1`
+

doc/user-guide.md

@@ -211,4 +211,4 @@ $ kubectl delete -f deploy/operator.yaml
 [go_tool]:https://golang.org/dl/
 [docker_tool]:https://docs.docker.com/install/
 [kubectl_tool]:https://kubernetes.io/docs/tasks/tools/install-kubectl/
-[minikube_tool]:https://github.com/kubernetes/minikube#installation
+[minikube_tool]:https://github.com/kubernetes/minikube#installation