Update README.md with basic examples

Signed-off-by: Yury Kulazhenkov <ykulazhenkov@nvidia.com>

README.md

@@ -1,2 +1,55 @@
 # nvidia-k8s-ipam
-IPAM plugin
+NVIDI IPAM plugin
+
+## Usage
+
+### Deploy IPAM
+
+_NOTE: This command will deploy latest dev build_
+
+```
+kubectl apply -f https://raw.githubusercontent.com/Mellanox/nvidia-k8s-ipam/main/deploy/nv-ipam.yaml
+```
+
+### Create config
+```
+cat <<EOF | kubectl apply -f -
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: nvidia-k8s-ipam-config
+  namespace: kube-system
+data:
+  config: |
+    {
+      "pools": {
+        "pool1": {"subnet": "192.168.0.0/16", "perNodeBlockSize": 100 , "gateway": "192.168.0.1"},
+        "pool2": {"subnet": "172.16.0.0/16", "perNodeBlockSize": 50 , "gateway": "172.16.0.1"}
+      },
+      "nodeSelector": {"kubernetes.io/os": "linux"}
+    }
+EOF
+
+```
+
+## CNI config
+
+Example config for bridge CNI
+
+```
+cat > /etc/cni/net.d/10-mynet.conf <<EOF
+{
+    "cniVersion": "0.2.0",
+    "name": "mynet",
+    "type": "bridge",
+    "bridge": "mytestbr",
+    "isGateway": true,
+    "ipMasq": true,
+    "ipam": {
+        "type": "nv-ipam",
+        "poolName": "pool1"
+    }
+}
+EOF
+
+```