Merge branch 'master' of https://github.com/LambdaSchool/Intro-Python-I

Author: br80

README.md

@@ -109,5 +109,5 @@ The suggested order for going through each of the directories is:
 
    1. How can you optimize this program?
    2. Implement [The Sieve of
-      Erathosthenes](https://en.wikipedia.org/wiki/Sieve_of_Eratosthenes), one
+      Eratosthenes](https://en.wikipedia.org/wiki/Sieve_of_Eratosthenes), one
       of the oldest algorithms known (ca. 200 BC).