Feat/sub-route (#38)

* blog subroute support
* docs: update readme and blog

Co-authored-by: mrhut10 <ahut10@gmail.com>

lib/utils/kebabCase.js

@@ -0,0 +1,8 @@
+const kebabCase = (str) =>
+  str &&
+  str
+    .match(/[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g)
+    .map((x) => x.toLowerCase())
+    .join('-')
+
+export default kebabCase