Updated README.md with better build instructions
The README section for building from source had some inaccuraces.
1. change build instruction from ```go build *.go``` to ```go build```.
2. Removed recommendation to clone into the `$GOROOT` directory.
GOROOT should only be mananged by the go system and installers.
@@ -174,11 +174,11 @@ The requested tile will be encode a layer with the `name` value set to `debug` a
## Building from source
-Tegola is written in [Go](https://golang.org/) and requires Go 1.8+ to compile from source. To build tegola from source, make sure you have Go installed and have cloned the repository to your `$GOPATH` or `$GOROOT`. Navigate to the repository then run the following commands:
+Tegola is written in [Go](https://golang.org/) and requires Go 1.8+ to compile from source. To build tegola from source, make sure you have Go installed and have cloned the repository to your `$GOPATH`. Navigate to the repository then run the following commands:
```bash
cd cmd/tegola/
-go build -o tegola *.go
+go build -o tegola
```
You will now have a binary named `tegola` in the current directory which is [ready for running](#running-tegola).
