Update intro_geo_ndxr.md

Author: npovejsil

intro_geo_ndxr.md

@@ -1,5 +1,5 @@
 
-##
+# Introduction to GeoNdxR
 `geondxr` is a low-code tool (pipeline via a [GitHub Repository](https://github.com/uwescience/WaterReuseDSSG2024)) that enables R users to create custom-made, dynamic websites showcasing a geographic index.
  <img src="{{ site.url }}{{ site.baseurl }}/assets/img/process.png" alt="GeoNdxR Process Diagram">
 `geondxr` helps R index creators pre-process the data they want to include in an index, calculate the index, and map it. From there, Creators can make their index website available to web users as an `.html` file that can be hosted on a service like Github pages. The index website includes a user interface that enables web users to tweak the default index generated by the creator based on variables they are interested in and to zoom in on their specific local area.