docs: Added docs.

docs/cli/envr.md

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+## envr
+
+Manage your .env files.
+
+### Synopsis
+
+envr keeps your .env synced to a local, age encrypted database.
+Is a safe and eay way to gather all your .env files in one place where they can
+easily be backed by another tool such as restic or git.
+
+All your data is stored in ~/data.age
+
+Getting started is easy:
+
+1. Create your configuration file and set up encrypted storage:
+
+> envr init
+
+2. Scan for existing .env files:
+
+> envr scan
+
+Select the files you want to back up from the interactive list.
+
+3. Verify that it worked:
+
+> envr list
+
+4. After changing any of your .env files, update the backup with:
+
+> envr sync
+
+5. If you lose a repository, after re-cloning the repo into the same path it was
+at before, restore your backup with:
+
+> envr restore ~/<path to repository>/.env
+
+### Options
+
+```
+  -h, --help   help for envr
+```
+
+### SEE ALSO
+
+* [envr backup](envr_backup.md)	 - Import a .env file into envr
+* [envr check](envr_check.md)	 - Check for missing binaries
+* [envr edit-config](envr_edit-config.md)	 - Edit your config with your default editor
+* [envr init](envr_init.md)	 - Set up envr
+* [envr list](envr_list.md)	 - View your tracked files
+* [envr nushell-completion](envr_nushell-completion.md)	 - Generate custom completions for nushell
+* [envr remove](envr_remove.md)	 - Remove a .env file from your database
+* [envr restore](envr_restore.md)	 - Install a .env file from the database into your file system
+* [envr scan](envr_scan.md)	 - Find and select .env files for backup
+* [envr sync](envr_sync.md)	 - Update or restore your env backups
+* [envr version](envr_version.md)	 - Show envr's version
+