Update README

README.md

@@ -1,40 +1,43 @@
-## Caches manager
+# Caches manager
 
 A simple script that helps keep selected directories clean by symlinking or mounting to tmpfs ramdisk.  
-Useful for temporary, cache and other junk directories.  
+Useful for temporary, cache and other junk directories.
 
-### Usage
+## Installation
 
-1. Enable system and/or user services.
+-   Copy `caches-manager` script to some `$PATH` directory, e.g. `/usr/bin`.
+-   Copy `systemd` directory to `/usr/lib`.
+
+If you want to use the script without systemd, just make it run early at system startup with `--system` flag and on user log-in with `--user` flag.
+
+## Usage
+
+### Services
+
+Enable system, user or both services depending on your needs.
 
         # systemctl enable caches-manager.service
         $ systemctl --user enable caches-manager.service
 
-2. Make your configs.
+Changes will be applied on the next boot (or user log-in in case of the user service). You can force changes by executing the services or running the script manually, but this is not recommended.
 
-The script reads all `.conf` files from respective directories:  
-- `/etc/caches-manager/system` - system-wide configs.
-- `/etc/caches-manager/user` - configs for all users.
-- `$XDG_CONFIG_HOME/caches-manager` (`~/.config/caches-manager`) - per-user configs.
+### Configs
 
-Configs are read as one path per line. Default mode of operation is to symlink the directory.  
-If you want to use mount instead, prefix the path with `b:`. Mounts require root privileges but more failsafe and keep actual directories if the service was disabled/uninstalled, so they are preferred for system directories.  
-System-wide configs require full absolute paths (e.g. `b:/var/cache`).  
-User configs treat paths relative to user home directory (e.g. `.cache` will be resolved to `~/.cache`).  
-
-**WARNING!** Tmpfs keeps data in RAM and drops it on every shutdown or reboot.  
-The app will backup existing non-empty directories just in case.  
+The script reads all `.conf` files from respective directories:
 
-3. Changes will be applied on the next boot (or user log-in in case of user service). You can force changes by executing the services or running the script manually, but this is not recommended.
+-   `/etc/caches-manager/system` - system-wide configs.
+-   `/etc/caches-manager/user` - configs for all users.
+-   `$XDG_CONFIG_HOME/caches-manager` (`~/.config/caches-manager`) - per-user configs.
 
-### Packages
+Configs are read as one path per line. Default mode of operation is to symlink the directory. If target exists, the app will backup existing content.  
+If you want to use mount instead, prefix the path with `b:`. Mounts require root privileges but more failsafe and non-destructive (mounts overlay existing content), so they are preferred for system directories.  
+System-wide configs require full absolute paths (e.g. `b:/var/cache`).  
+User configs treat paths relative to user home directory (e.g. `.cache` will be resolved to `~/.cache`).
 
-**Arch Linux**
-- [`caches-manager`](https://aur.archlinux.org/packages/caches-manager) <sup>AUR</sup>
+**WARNING!** Tmpfs keeps data in RAM and drops it on every shutdown or reboot.
 
-### Manual installation
+## Packages
 
-1. Copy `caches-manager` script to some `$PATH` directory, e.g. `/usr/bin`.
-2. Copy `systemd` directory to `/usr/lib`.
+**Arch Linux AUR**
 
-If you want to use the script without systemd, just make it run early at system startup with `--system` flag and on user log-in with `--user` flag.
+-   [`caches-manager`](https://aur.archlinux.org/packages/caches-manager)