Adjust workflow to better fit go

Author: monochromata

README.md

@@ -17,31 +17,36 @@ Use an up-to-date version of [go](https://golang.org/dl)
 
 To use the driver, you can download the sources and build it locally:
 
-    # Tell GO where to find sources and where to put binaries 
-    #    see also https://github.com/golang/go/wiki/SettingGOPATH
-    export GOPATH="$(pwd)"
-    export GOBIN=$GOPATH/bin
-    # Build the binary
+    # Get sources and build the binary at ~/go/bin/docker-machine-driver-hetzner
     go get github.com/jonasprogrammer/docker-machine-driver-hetzner
-    # Make the binary accessible to docker-machine
+
+    # Make the binary accessible to docker-machine ($GOBIN is typically ~/go/bin)
     export PATH="$PATH:$GOBIN"
+
     # Make docker-machine output help including hetzner-specific options
     docker-machine create --driver hetzner
 
 ### For development
 
-To compile the local sources, do the following:
+Fork this repository, yielding `github.com/<yourAccount>/docker-machine-driver-hetzner`.
+
+    # Get the sources of your fork and build it locally
+    go get github.com/<yourAccount>/docker-machine-driver-hetzner
+
+    # * This integrates your fork into the $GOPATH (typically pointing at ~/go)
+    # * Your sources are at $GOPATH/src/github.com/<yourAccount>/docker-machine-driver-hetzner
+    # * That folder is a local Git repository. You can pull, commit and push from there.
+    # * The binary will typically be at $GOPATH/bin/docker-machine-driver-hetzner
+    # * In the source directory $GOPATH/src/github.com/<yourAccount>/docker-machine-driver-hetzner
+    #   you may use go get to re-build the binary.
+    # * Note: when you build the driver from different repositories, e.g. from your fork
+    #   as well as github.com/jonasprogrammer/docker-machine-driver-hetzner,
+    #   the binary files generated by these builds are all called the same
+    #   and will hence override each other.
 
-    # Check out sources
-    git clone https://github.com/JonasProgrammer/docker-machine-driver-hetzner.git
-    # Tell GO where to find sources and where to put binaries 
-    #    see also https://github.com/golang/go/wiki/SettingGOPATH
-    export GOPATH="$(pwd)"
-    export GOBIN=$GOPATH/bin
-    # Build the binary
-    go get
     # Make the binary accessible to docker-machine
     export PATH="$PATH:$GOBIN"
+
     # Make docker-machine output help including hetzner-specific options
     docker-machine create --driver hetzner