updated readme file

README.md

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-Updated readme file
+# Push Docker Images to GitHub Container Registry
+## GitHub Action for Contineous publishing
+### To publish the docker container images to github container registry we need to get personal access token from developer seeting.
+  To get personal access token `Github profile -> developern setting -> select the classic option -> select delete and write permission` then copy the PAT somewhere as it will be used as a password for docker login.
+
+  ## Docker login 
+  In the project main branch login to the docker using `docker login --username githubusername --password PAT ghrc.io`
+  Then next step is to build the docker image using `docker build . -t ghrc.io/githubusername/yourimage:latest` 
+  Check the image using `docker image ls`
+  Push the docker image to the github container registry using `docker push ghcr.io/githubusername/yourimage:latest`
+
+  ## Contineous Publishing to GRC using Github action
+  Add the github action workflow
+
+