Melissa Hale

update Railway deployment instructions

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Hi 👋 I have updated the Railway deployment instructions in this PR. This PR addresses https://github.com/electerious/Ackee/issues/382

**🐞 Describe the bug** Ackee Docs describe a broken path for deploying Ackee to Railway. **📚 To Reproduce** Try to follow the Get Started > [Deploy with Railway instructions](https://docs.ackee.electerious.com/#/docs/Get%20started#with-railway) **💡...

[bitnami/postgresql-repmgr] if container is run as root, run the repmgr executable as postgres daemon user

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### Description of the change Adds the `am_i_root` check to the following functions in the `librepmgr.sh` scripts for the various postgres versions: - repmgr_clone_primary, repmgr_register_primary, repmgr_unregister_standby, repmgr_unregister_witness,, repmgr_register_witness, repmgr_standby_follow, repmgr_register_standby...