Merge pull request #104 from dynamsoft-docs/seo/update-title-meta

SEO: add page title to landing page

Author: Tom-Dynamsoft

README.md

@@ -1,2 +1,6 @@
+---
+title: "Dynamsoft Document Normalizer \u2013 Documentation Overview"
+---
+
 # document-normalizer-docs
 Dynamsoft Document Normalizer(DDN) documentation repo.