update readme

Author: Sarveshgithub

README.md

@@ -51,10 +51,14 @@ Enter WHERE clause | String | provide aditional filters | Example `LastName like
         "type": "text"
     }]
 ```
+## Deploy
+Click Button to deploy source in Developer/Sandbox
+
 <a href="https://githubsfdeploy.herokuapp.com/app/githubdeploy/Sarveshgithub/sfdc-lwc-lightning-datatable">
   <img alt="Deploy to Salesforce"
        src="https://raw.githubusercontent.com/afawcett/githubsfdeploy/master/deploy.png">
 </a>
 
+
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