Resolve "No instructor note on submission"

What does this MR do (summary)?

Closes #53 (closed)

Screenshots

Does this MR meet the acceptance criteria?

• The main application was run to make sure the server still runs without errors.
• Tests were written to verify the behaviour of this code.
• Javadoc and other comments were added to make the code understandable.
• The code adheres to the style guidelines.

added typefeature-request label

changed the description

added 1 commit

• 7a353393 - Add instructor note on submissions

Compare with previous version

unmarked as a Work In Progress

added 1 commit

• dbae5fcd - Add instructor note on submissions

Compare with previous version

approved this merge request

added this merge request to the merge train at position 3

removed this merge request from the merge train because 9:Failed to create merge commit for source_sha dbae5fcd and target_sha c732a7a9 at refs/merge-requests/54/train. debug_error_string:{"created":"@1600023733.012812764","description":"Error received from peer unix:/var/opt/gitlab/gitaly/gitaly.socket","file":"src/core/lib/surface/call.cc","file_line":1055,"grpc_message":"Failed to create merge commit for source_sha dbae5fcd and target_sha c732a7a9 at refs/merge-requests/54/train","grpc_status":9}

added 5 commits

• dbae5fcd...d660163e - 4 commits from branch development
• 4c2b2324 - Add instructor note on submissions

Compare with previous version

approved this merge request

added this merge request to the merge train at position 3

merged

mentioned in commit 144cfddd