Hi
Welcome to OSM. You are very valuable as a local contributor getting stuff 'us' remote contributors cannot see. 

However there are 2 errors from this changeset that I have corrected. It is ok, we all make errors, more frequently when we start out. So;
The library building is not part of the bus route, So I have removed it from that relation. The library building is also part of the uni and is already within the boundaries of that relation so it does not need to be listed there, so I that removed it from there too. 

Keep mapping, don't fear the errors, some will be picked up and fixed rapidly.. others may take some time to be found. 