Updated README.md

Author: varunsridharan

README.md

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 # Github Workflow Sync - ***Github Action***
 Github Action To Sync Github Action's Workflow Files Across Repositories 
 
+![https://cdn.svarun.dev/gh/varunsridharan/action-github-workflow-sync/action-banner.jpg](https://cdn.svarun.dev/gh/varunsridharan/action-github-workflow-sync/action-banner.jpg)
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 ## Use Case 🤔 ?
 _This Github Action can come in handy when you have lot of projects like i do._
 _where in some case certain projects users action workflow which are common across projects._