Update ordering of GO_REPLACE statements

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

README.md

@@ -304,7 +304,7 @@ func Handle(w http.ResponseWriter, r *http.Request) {
 
 For this example you will need to be using Go 1.13 or newer and Go modules, enable this via `faas-cli build --build-arg GO111MODULE=on`.
 
-Imagine you have a package which you want to store outside of the `handler.go` file, it's another middleware which can perform an echo.
+Imagine you have a package which you want to store outside of the `handler.go` file, it's another middleware which can perform an echo of the user's input.
 
 ```Golang
 package handlers
@@ -315,26 +315,25 @@ import (
 )
 
 func Echo(w http.ResponseWriter, r *http.Request) {
-
 	if r.Body != nil {
 		defer r.Body.Close()
 		b, _ := ioutil.ReadAll(r.Body)
 		w.Write(b)
 	}
-
 }
 ```
 
-To include a relative module such as this new `handlers` package, you should create a `GO_REPLACE.txt` file as follows.
-
-Let's say your GOPATH for your GitHub repo is: `github.com/alexellis/vault/` and your OpenFaaS function is `purchase` generated by `faas-cli new purchase --lang golang-middleware`.
-
-Your relative GOPATH is: `github.com/alexellis/vault/purchase`, so add a redirect as per below to redirect the "handlers" package to where it exists in the build container.
+To include a relative module such as this new `handlers` package, you should create a `GO_REPLACE.txt` file as follows:
 
 ```
 replace github.com/alexellis/vault/purchase/handlers => ./function/handlers
 ```
 
+How did we get to that? Let's say your GOPATH for your GitHub repo is: `github.com/alexellis/vault/` and your OpenFaaS function is `purchase` generated by `faas-cli new purchase --lang golang-middleware`.
+
+Your relative GOPATH is: `github.com/alexellis/vault/purchase`, so add a redirect as per below to redirect the "handlers" package to where it exists in the build container.
+
+
 Now if you want to reference the handlers package from within your `handler.go` write the following:
 
 ```golang