Add usage and basic config examples

README.md

@@ -1,2 +1,58 @@
 # backuper
 
+## Usage
+
+### Incremental backup
+
+```sh
+backuper i <config file path>
+```
+
+### Full backup
+
+```sh
+backuper f <config file path>
+```
+
+### Search files in backup
+
+```sh
+backuper s <config file path> <mask>
+```
+
+### Recover files from backup
+
+```sh
+backuper r <config file path> <mask> <files datetime> <path to recover>
+```
+
+Examples:
+
+```sh
+# Recover Go files relevant as of 01.01.2023 to /home/user/go directory
+backuper r config.conf "*.go" "01.01.2023" "/home/user/go"
+```
+
+### Test backup for errors
+
+```sh
+backuper t <config file path>
+```
+
+## Basic config example
+
+Backup config files from `/etc` and sqlite files from `/var`:
+
+```toml
+FileName = "backup"
+
+[[Patterns]]
+Path = "/etc"
+FileNamePatternList = ["*.conf", "*.toml", "*.ini", "*.yaml"]
+Recursive = true
+
+[[Patterns]]
+Path = "/var"
+FileNamePatternList = ["*.sqlite"]
+Recursive = true
+```