fixed typo

Author: shrink0r

README.md

@@ -13,7 +13,7 @@ Please have a look at the [available releases](https://github.com/shrink0r/suffi
 
 ## Purpose
 
-Suffix-tree implementation using the ukonen algorithm.
+Suffix-tree implementation using the ukkonen algorithm.
 The code is based on these two articles found at [stackoverflow](http://stackoverflow.com/questions/9452701/ukkonens-suffix-tree-algorithm-in-plain-english?answertab=oldest#tab-top)
 and [geeksforgeeks](http://www.geeksforgeeks.org/ukkonens-suffix-tree-construction-part-1/).
 

composer.json

@@ -1,8 +1,8 @@
 {
     "name": "shrink0r/suffix-tree",
     "type": "library",
-    "description": "Ukonen suffix-tree in php.",
-    "keywords": [ "suffix-tree", "ukonen" ],
+    "description": "Suffix-tree (Ukkonen) for PHP.",
+    "keywords": [ "suffix-tree", "ukkonen" ],
     "homepage": "https://github.com/shrink0r/suffix-tree",
     "license": "MIT",
     "authors": [