Please add affiliation numbers for Kerri Reilly, Dong Li, Peter Janssen

Add addresses to go with affiliations

Acknowledgement should be MPI through GPLER

Title needs to be Rumen methanogens' "molecular bridges" (with apostrophe after s to indicate multiple methanogens), or Rumen methanogen's "molecular bridges" (with apostrophe before s to indicate one methanogen, M1), or Rumen methanogen "molecular bridges" (no apostrophe to make it more generic, and perhaps more elegant).