Add examples and basic documentation

[clue]

No description provided.

[keevitaja]

Hello!

I did not want to create new topic...

Any chance someone could give me a snipped how to use this for finding the shortest path?

I have connected nodes and i need to find the shortst path from node a to node b.

[clue]

Hi @keevitaja!

See also the linked ticket graphp/algorithms#7 which raises the same documentation issue for our existing algorithms :-)

I encourage you to take a closer look at the graphp/algorithms package, your best bet would probably be the test suite: https://github.com/graphp/algorithms/tree/master/tests/ShortestPath

Any suggestions and PRs(!) to improve this would be much appreciated! 👍

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I'd like to make open issue actionable and it's unclear what needs to be changed for "example and basic documentation" to be completed. I've just closed this via #172, but more input will make sense in the future 👍