Update quickstart tutorials and acknowledgements

[justheuristic]

ToDO:

• move MoE from quickstart to a separate tutorial
• basic decentralized training example (new quickstart)
• basic dht tutorial
• update acknowledgements
• separate "success stories", maybe in readme / website?
• publications in README
• shared e-mail?
• move from gitter to discord
  • add "we've moved" to gitter
  • can discord send notifications?
• update installation with WSL guide
• installation with and without libp2p

[codecov]

Codecov Report

Merging #307 (dfad26f) into master (def7038) will decrease coverage by 0.33%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #307      +/-   ##
==========================================
- Coverage   82.62%   82.28%   -0.34%     
==========================================
  Files          66       66              
  Lines        5967     5979      +12     
==========================================
- Hits         4930     4920      -10     
- Misses       1037     1059      +22     

Impacted Files	Coverage Δ
hivemind/averaging/training.py	65.00% <100.00%> (+1.84%)	⬆️
hivemind/moe/__init__.py	100.00% <100.00%> (ø)
hivemind/moe/server/__init__.py	88.38% <100.00%> (+0.07%)	⬆️
hivemind/optim/simple.py	85.71% <100.00%> (+1.09%)	⬆️
hivemind/averaging/matchmaking.py	76.92% <0.00%> (-6.47%)	⬇️
hivemind/p2p/p2p_daemon.py	94.64% <0.00%> (-0.36%)	⬇️