Adding First Readme to the project (#55)

Author: theburi

README.md

@@ -1,3 +1,59 @@
 # MongoDB Atlas Operator
 Welcome to MongoDB Atlas Operator - the Operator allowing to manage Atlas Clusters from Kubernetes.
+> Current Status: *pre-alpha*. We are currently working on the initial set of features that will give users the opportunity to provision Atlas projects, clusters and database users using Kubernetes Specifications and bind connection information into the applications deployed to Kubernetes.   
+## Quick Start guide
+### Step 1. Deploy Kubernetes operator using all in one config file
+```
+kubectl apply -f https://raw.githubusercontent.com/mongodb/mongodb-atlas-kubernetes/deploy/all-in-one.yaml
+```
+### Step 2. Create Atlas Cluster
+
+**1.** Create Atlas API Key Secret
+In order to work with Atlas Operator you'll need to provide the [authentication information](https://docs.atlas.mongodb.com/configure-api-access) that would allow the Atlas Operator communicate with Atlas API. You need to create the secret first:
+```
+kubectl create secret generic my-atlas-key \
+         --from-literal="orgId=<the_atlas_organization_id>" \
+         --from-literal="publicApiKey=<the_atlas_api_public_key>" \
+         --from-literal="privateApiKey=<the_atlas_api_private_key>"    
+```
+**2.** Create `AtlasProject` Custom resource
+
+`AtlasProject` represents Atlas Project in our Kubernetes cluster. 
+Note: Property `connectionSecretRef` should reference the Secret `my-atlas-key` that was created in previous step:
+```
+cat <<EOF | kubectl apply -f -
+apiVersion: atlas.mongodb.com/v1
+kind: AtlasProject
+metadata:
+  name: my-project
+spec:
+  name: Test Atlas Operator Project
+  connectionSecretRef:
+    name: my-atlas-key
+EOF
+```
+**3.** Create the `AtlasCluster` Resource.
+Example below is a minimal configuration for Atlas MongoDB Cluster in AWS US East region, size M10. For a full list of properties check 
+`atlasclusters.atlas.mongodb.com` [CRD specification](config/crd/bases/atlas.mongodb.com_atlasclusters.yaml)):
+```
+cat <<EOF | kubectl apply -f -
+apiVersion: atlas.mongodb.com/v1
+kind: AtlasCluster
+metadata:
+  name: my-atlas-cluster
+spec:
+  name: "Test-cluster"
+  projectRef:
+    name: my-project
+  providerSettings:
+    instanceSizeName: M10
+    providerName: AWS
+    regionName: US_EAST_1
+EOF
+```
+### Step 3. Inspect Atlas Cluster Status
+You can use the following command to track the status of the Atlas Cluster Resource
+```
+kubectl get atlasclusters.atlas.mongodb.com -o yaml
+```