Update titles

Author: HengchengZhang

lectures/_config.yml

@@ -1,4 +1,4 @@
-title: An Introduction to Quantitative Economics and Finance
+title: A First Course in Quantitative Economics with Python
 author: Thomas J. Sargent & John Stachurski
 logo: _static/qe-logo.png
 description: This website presents introductory lectures on computational economics, designed and written by Thomas J. Sargent and John Stachurski.

lectures/intro.md

@@ -9,17 +9,13 @@ kernelspec:
   name: python3
 ---
 
-# Computational Economics and Finance for Undergraduates
+# A First Course in Quantitative Economics with Python
 
-```{admonition} Writing in progress
-:class: warning
-This lecture series is currently **in-work**
-```
-
-This website presents a set of lectures for undergraduates focusing on computational economics and finance, designed and written by [Thomas J. Sargent](http://www.tomsargent.com/) and [John Stachurski](http://johnstachurski.net/).
+This lecture series provides an introduction to quantitative economics using Python. 
 
-For an overview of the series, see [this page](https://quantecon.org/python-lectures/)
+It was designed and written by [Thomas J. Sargent](http://www.tomsargent.com/), [John Stachurski](http://johnstachurski.net/), and the rest of the QuantEcon team. 
 
+See [About these Lectures](about.md) for background and reading suggestions.
 ```{tableofcontents}
 ```