Typo error

Author: angelborroy-ks

README.md

@@ -20,7 +20,7 @@ Mac OS
 Linux Ubuntu
 * Mozilla Firefox: Applet
 
-**Notice**: this module superseed previous one [alfresco-firma-pdf](https://github.com/keensoft/alfresco-firma-pdf)
+**Notice**: this module supersede previous one [alfresco-firma-pdf](https://github.com/keensoft/alfresco-firma-pdf)
 
 This module uses a software digital certificate or a cryptographic hardware supported by a smart card.
 
@@ -104,4 +104,4 @@ Signer: CN=NOMBRE BORROY LOPEZ ANGEL FERNANDO - NIF 25162750Z, OU=500050546, OU=
 Serial number: 1022640006
 Caducity: Tue 12 Apr 2016
 Issuer: OU=FNMT Clase 2 CA, O=FNMT, C=ES
-```
+```