Readme: Update subtitle

Author: jakubboucek

README.md

@@ -1,5 +1,5 @@
 # PHP Composer consitency checker 
-Package for your App – it allows check himself has consistent Vendor dir with requirements.
+Checks if the `vendor/` directory is consistent with project's `composer.lock` (direct API, no CLI).
 
 `composer.json` <== (synchronized) ==> `/vendor`
 

composer.json

@@ -1,6 +1,6 @@
 {
     "name": "jakubboucek/composer-consistency",
-    "description": "Checks if the vendor/ directory is consistent with project's composer.lock",
+    "description": "Checks if the vendor/ directory is consistent with project's composer.lock (direct API, no CLI)",
     "type": "library",
     "license": "MIT",
     "authors": [