Update README.md

Sonny Li · web-flow · commit ff92c1cf3db6 · 2017-12-18T17:18:46.000-05:00
diff --git a/README.md b/README.md
@@ -87,10 +87,12 @@ $ ./hello
 - [ ] `findme.c`
 
 - [ ] `hangman.c`
+
+### Week 3 ###
+
 - [ ] `hypotenuse.c`
 - [ ] `area.c`
 
-
 - [ ] `books.c`
 - [ ] `car.c`
 
