docs: edit formatting & link MFS to ProtoSchool (#499)
docs: edit formatting & link MFS to ProtoSchool (#499)

- Change bullet formatting to make it possible to use the markdown headers to link specifically to the MFS portion of this document. 
- Link out from MFS section to the ProtoSchool tutorial as part of Q3 IPFS Docs initiative (see issue https://github.com/ProtoSchool/protoschool.github.io/issues/260)
ipfs/interface-ipfs-core