Update README.md

Author: leecalcote

README.md

@@ -58,31 +58,51 @@ A self-service engineering platform, <a href="https://meshery.io">Meshery</a>, i
  <br />Try Meshery in the <a href="https://play.meshery.io">Cloud Native Playground</a> (<a href="https://youtu.be/Do7htKrRzDA">teaser video</a>)
 </div>
 
-# kubectl meshsync snapshot
+## User Guide
 
 A `kubectl` plugin for performing an ad hoc collection of resource information from a Kubernetes cluster and sending the cluster resources details to a Meshery Server. `kubectl meshsync snapshot` is a native kubectl plugin for conveniently synchronizing the state of your cluster with Meshery Server.
 
-# Install from release
+
+#### Prerequisites
+1) Ensure that both [kubectl](https://kubernetes.io/docs/tasks/tools/) and [krew]([url](https://krew.sigs.k8s.io/docs/user-guide/setup/install/)) are installed in your system.
+2) Install the `meshsync snapshot` krew plugin.
+
 ```sh
-make install
+kubectl krew install meshsync https://github.com/meshery-extensions/kubectl-meshsync-snapshot
+```
+
+## Contributor Guide
+
+1) Fork and clone this repo
+```sh
+git clone https://github.com/meshery-extensions/kubectl-meshsync-snapshot
 ```
 
-# Install from local
-1) Build 
+2) Build project
+
 ```sh
 make build
 ```
 
-2) Update sha256 
-Hash is produced by step 1)
-manually update in meshsync-snapshot-local.yaml
-replace <put your hash here> with hash generated by build command (step 1)
+2) Update sha256
+  1. Open `meshsync-snapshot-local.yaml`.
+  2. Using the hash produced in step 1, replace the `<put your hash here>`
+  with hash generated by `make build`.
+
+4) Install development build
 
-3) Install 
 ```sh
 make install-local
 ```
 
+### Testing a Release
+
+1) Install a released version of this extension
+
+```sh
+make install
+```
+
 ## About Meshery Extensions
 
 [Meshery Extensions](https://meshery.io/extension) are plugins or add-ons that enhance the functionality of the Meshery platform beyond its core capabilities. Meshery supports different types of extensions ([docs](https://docs.meshery.io/extensions/)):