Add Renovate custom manager

.github/renovate.json

@@ -0,0 +1,18 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:base"
+  ],
+  "customManagers": [
+    {
+      "customType": "regex",
+      "fileMatch": [
+        "^docker-run-example.sh$"
+      ],
+      "matchStrings": [
+        "minituff\/nautical-backup:(?<currentValue>.*?) "
+      ],
+      "datasource ": "docker"
+    }
+  ]
+}

docs/introduction.md

@@ -1,6 +1,6 @@
 Nautical Backup is designed to be a simple and easy way to use tool to backup your docker volumes.
 
-Essentially, this is an automated and confugurable backup tool built around [rsync](https://en.wikipedia.org/wiki/Rsync). 
+Essentially, this is an automated and configurable backup tool built around [rsync](https://en.wikipedia.org/wiki/Rsync). 
 ## Backups Made Easy
 
 Nautical requires almost no configuration when container volumes are all in a folder matching its `container-name` within the source directory. Of course, we can use [variables](./arguments.md) to override these defaults.