Continued revisions of the boondoggle ms based on the editor comments

5. Removed reference to the model from the introduction
6. Changed the paper hypotheses to indicate the removal of the model.
7. Added statement that sediment OM may be due to benthic algal production
8. Added information to the discussion indicating the S-3 likely has higher benthic algal biomass.
9. Added conclusions and implications section
10. Made all minor editorial changes suggested by editor

TODO
1. merge lake maps
2. rewrite abstract