add contribution page (#117)

Add contribution page and suggestions by @clburlison

CONTRIBUTING.md

@@ -0,0 +1,65 @@
+# Contributing
+
+Welcome, if you're looking to help, this document is a great place to start! 
+
+
+# Finding Things That Need Help
+
+If you're looking to help, this is a great place to start. 
+- Read through the [MDM Protocol Reference](https://developer.apple.com/library/content/documentation/Miscellaneous/Reference/MobileDeviceManagementProtocolRef/3-MDM_Protocol/MDM_Protocol.html) on the Apple website. Having a deeper understanding of MDM can help with designing features and uncovering bugs. 
+- Follow the [Quickstart](https://github.com/micromdm/micromdm/wiki/Quickstart) guide and make edits if something doesn't look right. 
+- If you run into a problem that you're not sure how to fix, file a bug. 
+- Browse through the open issues. We try to tag issues as [**beginner friendly**](https://github.com/micromdm/micromdm/issues?q=is%3Aissue+is%3Aopen+label%3Abeginner-friendly) where appropriate.
+
+# Building the project
+
+To build MicroMDM from source, you will need [Go 1.8](https://golang.org/dl/) or later installed. 
+
+## If you have Go
+
+MicroMDM uses the go lang `dep` tool for vendor management. 
+Use `which dep` to verify you have it installed and in your PATH.
+If `dep` is not installed please review the [If you're new to Go](#if-youre-new-to-go) section for install steps.
+
+1. `go get github.com/micromdm/micromdm`
+2. `cd $GOPATH/src/github.com/micromdm/micromdm`
+3. `dep ensure` install the necessary dependencies into /vendor folder
+4. `go build` or `go install`
+
+## If you're new to Go
+
+Go is a bit different from other languages in its requirements for how it expects its programmers to organize Go code on a system.
+First, Go expects you to choose a folder, called a workspace (you can name it anything you'd like). The path to this folder must always be set in an environment variable - `GOPATH` (example: `GOPATH=/Users/groob/code/go`)  
+Your `GOPATH` must have thee subfolders - `bin`, `pkg` and `src`, and any code you create must live inside the `src` folder. It's also helpful to add `$GOPATH/bin` to your environment's `PATH` as that is where `go install` will place go binaries that you build.
+
+Note: As of Go 1.8 the default `GOPATH` is set to `$HOME/go`.
+
+A few helpful resources for getting started with Go.
+
+* [Writing, building, installing, and testing Go code](https://www.youtube.com/watch?v=XCsL89YtqCs)
+* [Resources for new Go programmers](http://dave.cheney.net/resources-for-new-go-programmers)
+* [How I start](https://howistart.org/posts/go/1)
+* [How to write Go code](https://golang.org/doc/code.html)
+* [GOPATH - go wiki page](https://github.com/golang/go/wiki/GOPATH)
+
+To build MicroMDM you will need to:  
+
+1. Download and install [`Go`](https://golang.org/dl/)  
+2. Install [`dep`](https://github.com/golang/dep) via `go get -u github.com/golang/dep/...`
+Note that `dep` is a very new project itself. If you're running trouble with the `dep ensure` command, ping @groob in the #micromdm channel on Slack.
+3. Set the `GOPATH` as explained above.
+4. `mkdir -p $GOPATH/src/github.com/micromdm`
+5. `git clone` the project into the above folder.  
+The repo must always be in the folder `$GOPATH/src/github.com/micromdm/micromdm` even if you forked the project. Add a git remote to your fork.  
+6. `dep ensure` The `dep` command will download and install all necessary dependencies for the project to compile.
+7. `go build` or `go install`
+8. File an issue or a pull request if the instructions were unclear.
+
+
+# Important libraries and frameworks
+
+MicroMDM is built using a few popular Go packages outside the standard libraries. It might be worth checking them out. 
+
+- [Go Kit](https://github.com/go-kit/kit#go-kit------) is a set of Go libraries used by MicroMDM to provide [logging](https://github.com/go-kit/kit/tree/master/log), and abstractions for building HTTP services. Its [examples](https://gokit.io/examples/) page is a good place to start.  
+- [BoltDB](https://github.com/boltdb/bolt#getting-started) is a key/value database used to provide persistant storage for many components of MicroMDM.
+- [gorilla/mux](http://www.gorillatoolkit.org/pkg/mux) is used to provide routing for http handlers. 

README.md

@@ -40,6 +40,8 @@ The wiki page is open to anyone and you can make a lot of impact on the project
 - Were you able to set up MicroMDM and enroll a few devices? Try blogging about your experience. 
 It can help others get started, or can help us figure out what we need to do better.
 
+See the [CONTRIBUTING](CONTRIBUTING.md) page for additional info. 
+
 # Design Goals
 
 As mentioned in the introduction, we are working on trying to solve the use case of bootstraping Macs. That's the short term (from now until WWDC).