Installation command

Author: JanSlabon

README.md

@@ -8,7 +8,7 @@ FPDF is a PHP class which allows to generate PDF files with pure PHP. F from FPD
 
 If you're using Composer to manage dependencies, you can use
 
-    $ composer require "setasign/fpdf": "1.7"
+    $ composer require setasign/fpdf:1.7
 
 or you can include the following in your composer.json file: