doc(readme) Update the version.

Hywan · Hywan · commit 7a12ee30e0e2 · 2017-10-09T11:16:24.000+02:00
diff --git a/README.md b/README.md
@@ -25,7 +25,7 @@ Install extension using [Composer](https://getcomposer.org):
 {
     "require-dev": {
         "atoum/atoum": "dev-virtual-hooks",
-        "atoum/phpunit-extension": "~0.3.0"
+        "atoum/phpunit-extension": "~0.4.0"
     }
 }
 ```

Original file line number	Diff line number	Diff line change
`@@ -25,7 +25,7 @@ Install extension using [Composer](https://getcomposer.org):`
`25`	`25`	`{`
`26`	`26`	`"require-dev": {`
`27`	`27`	`"atoum/atoum": "dev-virtual-hooks",`
`28`		`- "atoum/phpunit-extension": "~0.3.0"`
	`28`	`+ "atoum/phpunit-extension": "~0.4.0"`
`29`	`29`	`}`
`30`	`30`	`}`
`31`	`31`	```