documentation checked and edit

for all files in lib folder

lib/LcdWrapper/LcdWrapper.cpp

@@ -1,5 +1,5 @@
 /**
- * @file displayWrapper.cpp
+ * @file LcdWrapper.cpp
  * @author Alexander Klein (alex@kleiax.de)
  * @brief Contains the implementation of the class LcdWrapper
  * @version 0.1

lib/LcdWrapper/LcdWrapper.h

@@ -1,5 +1,5 @@
 /**
- * @file displayWrapper.h
+ * @file LcdWrapper.h
  * @author Alexander Klein (alex@kleiax.de)
  * @brief Contains the LcdWrapper class
  * @version 0.1
@@ -37,7 +37,6 @@ public:
 
     /**
      * @brief Empty the buffer
-     *
      */
     void clear() override;