added Building.md

Building.md

@@ -0,0 +1,38 @@
+# Building FwAnalyzer
+
+## Requirements
+
+- golang + dep + golang-lint
+- Python
+- filesystem tools such as e2tools, mtools
+
+The full list of dependencies is tracked in the [Dockerfile](Dockerfile).
+
+## Clone Repository
+
+```sh
+cd go/src/github.com/cruise-automation/
+git clone git@github.com:cruise-automation/fwanalyzer.git
+```
+
+## Building
+
+Before building you need to download some third party go libraries, run `make deps` before the first build.
+
+```sh
+cd go/src/github.com/cruise-automation/fwanalyzer
+make deps
+make
+```
+
+The `fwanalyzer` binary will be in `build/`.
+
+# Testing
+
+We have two types of tests: unit tests and integration tests, both tests will be triggered by running `make test`.
+Tests rely on e2tools, mtools, squashfs-tools, and ubi_reader, as well as Python.
+
+```sh
+cd go/src/github.com/cruise-automation/fwanalyzer
+make test
+```

Readme.md

@@ -54,6 +54,10 @@ Example report:
 }
 ```
 
+## Building and Development
+
+Follow the steps described in [Building](Building.md) to install all requirements and build FwAnalyzer.
+
 ## Using FwAnalyzer
 
 Command line options