Update README.md

Author: mynttt

README.md

@@ -4,7 +4,7 @@
 
 The CYK-Algorithm can be used to check if a word can be derived from a CFG (context-sensitive grammar).
 
-You only need you grammar to be in the CNF (Chomsky normal form) format. This Java application will parse an external grammar file and then output the result visualized in a table.
+You only need your grammar to be in the CNF (Chomsky normal form) format. This Java application will parse an external grammar file and then output the result visualized in a table.
 
 ## Grammar File