Fix typo

index.html

@@ -68,7 +68,7 @@
                 <p>
                     StatiCrypt basically encrypts your page and puts everything with a user-friendly way to use a password
                     in the new file.
-                    <br>AES-256 is state of the art but <b>brute-force/dictionnary attacks are trivial to
+                    <br>AES-256 is state of the art but <b>brute-force/dictionary attacks are trivial to
                     do at a really fast pace: use a long, unusual passphrase&nbsp;!</b>
                 </p>
                 <p>