minor adjustments to learning objs

Author: trevorcampbell

source/reading.md

@@ -62,8 +62,9 @@ By the end of the chapter, readers will be able to do the following:
 - Execute queries to bring data from a database into Python using the `ibis` library's `execute` function.
 - Use `to_csv` to save a data frame to a `.csv` file.
 - (*Optional*) Obtain data using **a**pplication **p**rogramming **i**nterfaces (APIs) and web scraping.
-    - Read/scrape data from an internet URL using the `BeautifulSoup` package
-    - Compare downloading tabular data from a plain text file (e.g. `.csv`) from the web versus scraping data from a `.html` file
+    - Read/scrape data from an internet URL using the `BeautifulSoup` package.
+    - Read data from the NASA "Astronomy Picture of the Day" using the `requests` package.
+    - Compare downloading tabular data from a plain text file (e.g., `.csv`), accessing data from an API, and scraping the HTML source code from a website.
 
 ## Absolute and relative file paths