chore: remove lesson_29 pre-work from homework (#658)

Author: anthonydmays

lesson_28/README.md

@@ -14,7 +14,6 @@ Please review the following resources before lecture:
 ## Homework
 
 - [ ] Complete [Loading the Library, Part II](#loading-the-library-part-ii) assignment.
-- [ ] Do pre-work for [lesson 29](/lesson_29/).
 
 
 ### Loading The Library, Part II
@@ -37,4 +36,4 @@ As before, you can run the app from the console using the following command:
 
 [queries-dir]: ./db/db_app/src/main/resources/queries/
 [sqlite-db]: ./db/db_app/src/main/resources/sqlite/
-[library-app]: ./db/db_app/src/main/java/com/codedifferently/lesson28/cli/LibraryApp.java#L26
+[library-app]: ./db/db_app/src/main/java/com/codedifferently/lesson28/cli/LibraryApp.java#L26