Update README.md compilation instructions

README.md

@@ -86,6 +86,24 @@ platform.
 
 ### Linux/OSX
 
+We use the `dep` tool provided by Golang for managing dependencies. As it is not officially part
+of the go tools package suite, you will need to manually install it if you have not already.
+
+On MacOS you can install or upgrade to the latest released version with Homebrew:
+
+```sh
+brew install dep
+brew upgrade dep
+```
+
+On linux or MacOS, you can also install it via `go get`:
+
+```sh
+go get -u github.com/golang/dep/cmd/dep
+```
+
+After `dep` is installed, please follow the instructions below:
+
 ```bash
 go get github.com/thrasher-/gocryptotrader
 cd $GOPATH/src/github.com/thrasher-/gocryptotrader