Update readme and tweak build

- Tweaked the build to copy `settings_example.json` to `settings.json` if
  it doesn't exist.
- Updated the readme to reflect changes with modules and the Makefile.

Makefile

@@ -2,7 +2,7 @@ TAGS=
 
 .PHONY: fmt vet get clean dev setdev test
 
-all: fmt vet test MovieNight MovieNight.exe static/main.wasm
+all: fmt vet test MovieNight MovieNight.exe static/main.wasm settings.json
 
 setdev:
 	$(eval export TAGS=-tags "dev")
@@ -33,3 +33,8 @@ vet:
 
 test:
 	go test $(TAGS) ./...
+
+# Do not put settings_example.json here as a prereq to avoid overwriting
+# the settings if the example is updated.
+settings.json:
+	cp settings_example.json settings.json

readme.md

@@ -16,11 +16,11 @@ online.
 To just download and run:
 
 ```bash
-$ go get -u -v github.com/zorchenhimer/MovieNight
-$ cd $GOROOT/src/zorchenhimer/MovieNight
+$ git clone https://github.com/zorchenhimer/MovieNight
+$ cd MovieNight
+$ make get	# only needs to be run once
 $ make
-$ cp settings_example.json settings.json
-$ MovieNight  -l :8089 -k longSecurityKey
+$ ./MovieNight
 ```
 
 ## Usage