Add development files for Map Maker

Author: gjbex

source-code/streamlit/README.md

@@ -7,3 +7,5 @@ streamlit is a framework for creating dashboards.
 
 1. [`distributions.py`](distributions.py): dashboard that displays a sample from a
    user-selected probability distribution.
+1. [`map_maker`](map_maker): streamlit application to create chloropleth maps of
+   Belgium based on an Excel or CSV file.

source-code/streamlit/map_maker/.gitignore

@@ -0,0 +1,2 @@
+package-lock.json
+node_modules/

source-code/streamlit/map_maker/README.md

@@ -0,0 +1,20 @@
+# Map Maker
+
+Application to create chloropleth maps for Belgium based on data in an Excel
+or CSV file.
+
+
+## What is it?
+
+1. [`map_maker_lib.py`](map_maker_lib.py): Python module that defines the
+   functions and constants used in the CLI and web application.
+1. [`map_maker.py`](map_maker.py): command line application.
+1. [`map_maker_app.py`](map_maker_app.py): streamlit web application.
+
+
+## How to use it?
+
+To run the web application:
+```bash
+$ streamlit run map_maker_app.py
+```