Added Synology & Permissions

cli/permissions.md

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+# Setting Folder Permissions
+
+## Symbolic Notation
+
+'''bash
+chmod u+rwx foldername     # Give owner read, write, execute
+chmod g+rx foldername      # Give group read and execute
+chmod o-rwx foldername     # Remove all permissions for others
+chmod -R u+rw foldername   # Recursively give read/write to owner
+'''
+
+## Numeric Notation
+
+'''bash
+chmod 755 foldername       # rwxr-xr-x (owner: all, group: read+execute, others: read+execute)
+chmod 700 foldername       # rwx------ (owner: all, no permissions for group or others)
+chmod 777 foldername       # rwxrwxrwx (all permissions for everyone - use cautiously)
+'''
+
+The -R flag makes it recursive within every subfolder beneath the folder referenced.
+
+Common permission numbers:
+
+755: Owner can do anything, others can read and execute
+644: Owner can read/write, others can read
+700: Only owner has access
+777: Everyone has full access (generally avoid this)
+
+## Setting Permissions to a Specific User
+
+Use chown to set permissions to a specific user. (You'll almost always need to run with sudo)
+
+'''bash
+# Change owner of a file/folder
+chown username foldername
+
+# Change both owner and group
+chown username:groupname foldername
+
+# Recursively change ownership (include all files and subfolders)
+chown -R username foldername
+
+# Change owner and group recursively
+chown -R username:groupname foldername
+'''

cli/syno.md

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+# Docker Permissions
+
+You've saved the permissions run as fix-docker-permissions, so you can call it via CLI like this:
+'''bash
+sudo fix-docker-permissions
+'''
+
+It's also saved as a recurring task in Task Scheduler.

readme.md

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 ## Command Line Tools
 - [ZIP Commands](cli/zip.md)
+- [Misc. Synology Commands](cli/syno.md)
+- [Setting Permissions](cli/permissions.md)