Created Development Setup (markdown)

Development-Setup.md

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+#Development Setup
+
+## STEP 1: Install Docker
+For local development we recommend to use Docker.
+
+If you don’t have it you can read how to install it here:
+https://docs.docker.com/engine/getstarted/step_one/#step-3-verify-your-installation
+
+## STEP 2: Download repository
+
+`git clone git@github.com:buger/goreplay.git`
+
+
+## STEP 3: Setup container
+
+```
+cd ./goreplay
+make build
+
+```
+
+## Tests
+To run tests execute next command:
+
+```
+make test
+```
+
+You can copy the command that it produces and modify it. For example, if you need to run one test copy the command and add `-run TestName`, e.g.:
+
+```
+docker run -v `pwd`:/go/src/github.com/buger/gor/ -p 0.0.0.0:8000:8000 -t -i gor:go go test ./. -run TestEmitterFiltered -timeout 60s -ldflags "-X main.VERSION=DEV-1482398347 -extldflags \"-static\""   -v
+```
+