Corrected some typos

ReadMe.md

@@ -10,7 +10,7 @@ This driver offers a c++ wrapper to control a pan&tilt [PTU-D46](https://www.sus
  * Move both servos to a desired position.
  * Move both servos to a desired position relative to the current position.
  * Move both servos on torque mode.
- * Get any feedback that the pna-tilt offers.
+ * Get any feedback that the pan&tilt offers.
 
 On the following image is shown a pan&tilt and its controller:
 
@@ -32,8 +32,8 @@ Copyright (C) 2009-2010 Institut de Robòtica i Informàtica Industrial, CSIC-UP
 Author shernand (shernand@iri.upc.edu)
 All rights reserved.
 
-This file is part of Pan project_name Tilt PTU-D46 driver library
-Pan project_name Tilt PTU-D46 driver library is free software: you can redistribute it and/or modify
+This file is part of Pan&Tilt PTU-D46 driver library
+Pan&Tilt PTU-D46 driver library is free software: you can redistribute it and/or modify
 it under the terms of the GNU Lesser General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 at your option) any later version.