Write documentation

[daffidwilde]

A (long) list of all the things in this (large) PR:

• [ ] Tutorials
  • [ ] Installing matching
  • [ ] Creating and solving a simple game
  • [ ] Playing a larger game with dictionaries
  • [x] Producing a final year project allocation
• [ ] How to
  • [ ] Check the state of a matching
  • [ ] Update a matching manually
• [x] Discussion
  • [x] The stable marriage problem 0f40a45
  • [x] The hospital-resident assignment problem acaff50
  • [x] The student allocation problem 79e6004
  • [x] Other packages 02d2c4c
  • Python: axelrod, gambit, nashpy
  • R: EvolutionaryGames, GameTheory, gtree
• [x] Reference
  • [x] Source files 6ac073d
  • [x] Citing the library f332b66
  • [x] Contributing to the library 9d4adcb

[coveralls]

Pull Request Test Coverage Report for Build 99

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 99.84%

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Totals
Change from base Build 206:	0.0%
Covered Lines:	625
Relevant Lines:	626

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💛 - Coveralls

[daffidwilde]

Merging this PR for now to clean up the tree.