Update README.md
Update README.md
Update README.md
Update README.md
fixed graph options
Merge https://github.com/shun159/topology_manager
fixed dijkstra path solver.
added dijkstra rspec
more coverege
Merge pull request #1 from shun159/rspec

more coverage
Update README.md
added floyd rspec
Merge pull request #2 from shun159/rspec

added floyd rspec
added floyd rspec
Merge pull request #3 from shun159/rspec

added floyd rspec
added floyd rspec#2
Merge pull request #4 from shun159/rspec

added floyd rspec#2
Update README.md
Update README.md
update readme examples