Merge pull request #19 from LauraHilliger/master

Removed "Part A" folder
Merge pull request #20 from LauraHilliger/master

editing resource library page
Update 01. Collecting Assets.md
Update 02. Level up via Remix.md
Update 03. Collaboration and Ideation.md
Update 04. Project planning.md
added 5th module
readded assesing the learning sections, not sure where they went or why they were deleted