README.md: minor updates

We are not using any MaxMind data anymore. Also, remove the notes
about configuration as this is no longer accurate—all configuration
is done via the web admin interface.

README.md

@@ -11,7 +11,7 @@
 
 The Open Repository Explorer and Visualizer (OpenRXV) is a dashboard-like tool that was created to help people find and understand content in open access repositories like [DSpace](https://duraspace.org/dspace). It began as a proof of concept developed by [CodeObia](http://codeobia.com/) and [the Monitoring, Evaluation and Learning (MEL)](https://mel.cgiar.org) team at the [International Center for Agricultural Research in the Dry Areas (ICARDA)](https://www.icarda.org) to enable exploring and reporting on content in two key institutional repositories. Later, in partnership with the [International Livestock Research Institute (ILRI)](https://www.ilri.org), the scope was expanded with the idea of supporting more repository types and larger amounts of items. In the future we hope to be able to support any repository that uses Dublin Core metadata and has an API for harvesting.
 
-This project contains a backend indexer powered by [Node.js](https://nodejs.org/) and [Elasticsearch](https://www.elastic.co), and a dynamic frontend built with [Angular](https://angular.io), [Bootstrap](https://getbootstrap.com), [Highcharts](https://www.highcharts.com/), [Angular Material](https://material.angular.io/), and [Ngrx](https://ngrx.io/). The application is wrapped up and deployed via [Docker](https://www.docker.com/). This product includes GeoLite2 data created by MaxMind, available from [https://www.maxmind.com](https://www.maxmind.com).
+This project contains a backend indexer powered by [Node.js](https://nodejs.org/) and [Elasticsearch](https://www.elastic.co), and a dynamic frontend built with [Angular](https://angular.io), [Bootstrap](https://getbootstrap.com), [Highcharts](https://www.highcharts.com/), [Angular Material](https://material.angular.io/), and [Ngrx](https://ngrx.io/). The application is wrapped up and deployed via [Docker](https://www.docker.com/).
 
 You can see an example of the project working on our [Agricultural Research e-Seeker (AReS)](https://cgspace.cgiar.org/explorer/).
 
@@ -33,14 +33,6 @@ This will bring up all of the container components of the project and start buil
 
 *Note: the Elasticsearch component requires more virtual memory. You will most likely need to increase the host system's memory map limits by setting `vm.max_map_count = 262144` in /etc/sysctl.conf. See the [Elasticsearch docs for more information](https://www.elastic.co/guide/en/elasticsearch/reference/current/vm-max-map-count.html).*
 
-## Configuration
-
-Configuration of repositories and metadata to harvest is in `backend/config/index.json`. Mappings of equivalent metadata values — for example "Kenya" and "KENYA" — are in `backend/config/mapping.json`.
-
-## TODO
-
-- Improve documentation (in progress...)
-
 ## Documentation
 
 The application is divided into four sections.