LOGIC-1044: Small fix readmes

Author: Gabriel Urs

Binary_Counter_4Bit/README.MD

@@ -20,7 +20,7 @@ The schematic is shown in the below image. A positive edge detector is used for
 
 ## Demo
 
-The demo shows an exemple of using the counter. TMR0_Overflow is used as a Clock input.
+The demo shows an example of using the counter. TMR0_Overflow is used as a Clock input.
 <br><img src="images/binary_counter_4bit_demo.png" width="600">
 
  The waveforms obtained on each output pin are shown in the below image.

Binary_Down_Counter_4Bit/README.MD

@@ -20,7 +20,7 @@ The schematic is shown in the below image. A positive edge detector is used for
 
 ## Demo
 
-The demo shows an exemple of using the counter. TMR0_Overflow is used as a Clock input.
+The demo shows an example of using the counter. TMR0_Overflow is used as a Clock input.
 <br><img src="images/binary_down_counter_4bit_demo.png" width="600">
 
  The waveforms obtained on each output pin are shown in the below image.

Johnson_Counter_4Bit/README.MD

@@ -20,7 +20,7 @@ The schematic is shown in the below image. A positive edge detector is used for
 
 ## Demo
 
-The demo shows an exemple of using the counter. TMR0_Overflow is used as a Clock input.
+The demo shows an example of using the counter. TMR0_Overflow is used as a Clock input.
 <br><img src="images/johnson_counter_4bit_demo.png" width="600">
 
  The waveforms obtained on each output pin are shown in the below image.

Ring_Counter_4Bit/README.MD

@@ -20,7 +20,7 @@ The schematic is shown in the below image. A positive edge detector is used for
 
 ## Demo
 
-The demo shows an exemple of using the counter. TMR0_Overflow is used as a Clock input.
+The demo shows an example of using the counter. TMR0_Overflow is used as a Clock input.
 <br><img src="images/ring_counter_4bit_demo.png" width="600">
 
  The waveforms obtained on each output pin are shown in the below image.

Up_Down_Counter_4Bit/README.MD

@@ -21,7 +21,7 @@ The schematic is shown in the below image. A positive edge detector is used for
 
 ## Demo
 
-The demo shows an exemple of using the counter. TMR0_Overflow is used as a Clock input. The direction is changed by using a CLB Software Input Register (CLBSWIN).
+The demo shows an example of using the counter. TMR0_Overflow is used as a Clock input. The direction is changed by using a CLB Software Input Register (CLBSWIN).
 <br><img src="images/up_down_counter_4bit_demo.png" width="600">
 
  The waveforms obtained on each output pin are shown in the below image.