Added docs for deploy_info

Signed-off-by: aryans1204 <arshar1204@gmail.com>

docs/generate_deploy_info_docs.md

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+# Deploy Info JSON
+
+## The `deploy_info.json` file in the `yamls.tar.gz`  is used to identify the relative filepaths for the Knative YAML manifests for deploying vSwarm functions. It is generated using `generate_deploy_info.py` Python script, also present under `yamls.tar.gz`, which outputs a JSON that embeds the yaml-location and predeployment-commands for every vSwarm function.
+
+## While the `deploy_info.json` file ships with the `yamls.tar.gz`, In order to regenerate the `deploy_info.json` run:
+```console
+tar -xzvf workloads/container/yamls.tar.gz -C workloads/container
+cd workloads/container/yamls/
+python3 generate_deploy_info.py
+```