MAINT: standardize README (#394)

Author: mmcky

README.md

@@ -1,9 +1,16 @@
-# lecture-python.myst
+# Intermediate Quantitative Economics with Python
 
-Migration to Myst (Source files for https://python.quantecon.org)
+This website presents a set of lectures on quantitative economic modeling.
 
-## GH-PAGES
+## Jupyter notebooks
 
-This repository is hosted on Github Pages:
+Jupyter notebook versions of each lecture are available for download
+via the website.
 
-https://quantecon.github.io/lecture-python.myst/
+## Contributions
+
+To comment on the lectures please add to or open an issue in the issue tracker (see above).
+
+We welcome pull requests!  
+
+Please read the [QuantEcon style guide](https://manual.quantecon.org/intro.html) first, so that you can match our style.