Add missing collaborators to README

[rvagg]

We're missing some new collaborators from the README, would the following people mind submitting a PR to get their details on there please?

• @sam-github (doc: add sam-github as collaborator #791)
• @geek (doc: add geek as collaborator #835)
• @shigeki

It's a helpful part of the onboarding process for a couple of reasons:

1. practice & a safe way to check that you're on the right wavelength re git workflow
2. demonstrate that the project really is open
3. provide additional kudos to those putting in the hard work here

[shigeki]

@rvagg I don't mind submitting PR but I'd like to have a sample what to write or see what others write.

[vkurchatkin]

@shigeki something like this 96597bc

[rvagg]

git log -- README.md yields the interesting results and points towards recent PRs:

• doc: add lxe as collaborator #745
• doc: add micnic as collaborator #651
• doc: add seishun as a collaborator #598
• doc: add vkurchatkin as collaborator #591

See the merged commits for the process of merging them once you get a "lgtm" or two. If you need any further help please reach out for help and people will jump to your rescue.

[shigeki]

@vkurchatkin @rvagg Thanks for advice. I thought I need to write some kind of vitae somewhere :-) It's a simple PR procedure. I will do it right now.

[sam-github]

Sorry, @rvagg @chrisdickinson I've been distracted by node summit!

[cjihrig]

Looks like everyone mentioned here has been added.