create a sample configuration file and remove the config.ps1 from the repo

config_sample.ps1

@@ -0,0 +1,66 @@
+# Sample configuration file
+# Update this file to control how the restic backup, forget, and purge operations are run
+# Rename to `config.ps1`
+
+# general configuration
+$InstallPath = "C:\restic"
+$ExeName = "restic.exe"
+$GlobalParameters = @()
+$LogRetentionDays = 30
+$BackupOnMeteredNetwork = $true
+$InternetTestAttempts = 10
+$GlobalRetryAttempts = 4
+
+# email configuration
+$SendEmailOnSuccess = $false
+$SendEmailOnError = $true
+
+# backup configuration
+$WindowsExcludeFile = Join-Path $InstallPath "windows.exclude"
+$LocalExcludeFile = Join-Path $InstallPath "local.exclude"
+$IgnoreMissingBackupSources = $false
+$AdditionalBackupParameters = @("--exclude-if-present", ".nobackup", "--no-scan")
+
+# Paths to backup
+$BackupSources = @{}
+$BackupSources["C:\"] = @(
+#    "Users\Example\Desktop\Source1",
+#    "Users\Example\Desktop\Source2"
+)
+# $BackupSources["D:\"] = @(
+#    "Example\Source3",
+#    "Example\Source4"
+# )
+#$BackupSources["DRIVE_LABEL_NAME_OR_SERIAL_NUMBER"] = @(
+#    "Example\FolderName"
+#)
+
+# maintenance configuration
+$SnapshotMaintenanceEnabled = $true
+$SnapshotRetentionPolicy = @("--host", $env:COMPUTERNAME, "--group-by", "host,tags", "--keep-daily", "30", "--keep-weekly", "52", "--keep-monthly", "24", "--keep-yearly", "10")
+$SnapshotPrunePolicy = @("--max-unused", "1%")
+$SnapshotMaintenanceInterval = 7
+$SnapshotMaintenanceDays = 30
+$SnapshotDeepMaintenanceDays = 90
+
+# restic.exe self update configuration
+$SelfUpdateEnabled = $true
+
+# (optional) custom actions 
+# Define commands to pass to Invoke-Expression at script start and script end
+# note: Errors will only be reported if the script does not eventually succeed. Errors 
+#       from unsuccessful attempts to backup or maintain the repository will not result
+#       in the custom error action being called unless all attempts to backup or maintain failed. 
+$CustomActionStart = $null
+$CustomActionEndError = $null
+$CustomActionEndSuccess = $null
+
+# Example: Calling a healthcheck remote service
+# $healthCheckURL = "https://healthcheckservice.com/etc/etc"
+# $CustomActionStart = "Invoke-RestMethod $healthCheckURL/start"
+# $CustomActionEndError = "Invoke-RestMethod $healthCheckURL/fail"
+# $CustomActionEndSuccess = "Invoke-RestMethod $healthCheckURL"
+
+# Example: Invoking a script
+# $successScript = Join-Path $InstallPath "mySuccessScript.ps1"
+# $CustomActionEndSuccess = "& $successScript"