Update readme, makefile

Makefile

@@ -1,7 +1,9 @@
 .PHONY: jsonedit.phar
-jsonedit.phar:
+jsonedit.phar: composer
 	echo "<?php return [ 'version' => \"v$(shell git describe --tags)\", 'builddate' => \"$(shell LC_ALL=C date)\" ];" > src/build.php \
 	&& box compile \
 	&& rm src/build.php \
 	&& mv bin/jsonedit.phar .
-	
+.PHONY: composer
+composer:
+	test -d vendor || composer install

README.md

@@ -13,9 +13,8 @@ This is an editor for JSON files, that also supports YAML.
 - Makes use of Unicode glyphs in 16 magnificent colors!
 - Handles array, objects and values
 - Folding of array and object keys
-- Core edit operations: insert, edit, delete
+- Core edit operations: insert, edit, delete, duplicate
 - A minimum of dependencies
-- ~300KB executable PHAR
 
 ![screenshot](./doc/screens/main.png)
 
@@ -24,17 +23,17 @@ This is an editor for JSON files, that also supports YAML.
 The recommended way to install and run JSONEdit is by grabbing the PHAR from
 the latest release:
 
-- [https://dev.noccylabs.info/noccy/jsonedit/releases](https://dev.noccylabs.info/noccy/jsonedit/releases)
+- [https://dev.noccylabs.info/jsonedit/jsonedit/releases](https://dev.noccylabs.info/jsonedit/jsonedit/releases)
 
 You can also clone the respository and use [Box](https://box-project.github.io/box/)
-to build the .phar yourself:
+to build the .phar yourself. The recommended way of doing this is with the included
+`Makefile` and GNU Make:
 
 ```bash
-$ git clone https://dev.noccylabs.info/noccy/jsonedit
+$ git clone https://dev.noccylabs.info/jsonedit/jsonedit
 $ cd jsonedit
-$ composer install
-$ box compile
-$ mv bin/jsonedit.phar ~/bin/jsonedit
+$ make
+$ mv jsonedit.phar ~/bin/jsonedit
 ```
 
 ## Using