Update to FPDF 1.81

Author: JanSlabon

README.md

@@ -8,14 +8,14 @@ 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:1.8
+    $ composer require setasign/fpdf:1.8.1
 
 or you can include the following in your composer.json file:
 
 ```json
 {
     "require": {
-        "setasign/fpdf": "1.8"
+        "setasign/fpdf": "1.8.1"
     }
 }
 ```

composer.json

@@ -1,6 +1,6 @@
 {
     "name": "setasign/fpdf",
-    "version": "1.8",
+    "version": "1.8.1",
     "homepage": "http://www.fpdf.org",
     "description": "FPDF is a PHP class which allows to generate PDF files with pure PHP. F from FPDF stands for Free: you may use it for any kind of usage and modify it to suit your needs.",
     "type": "library",