Update theory.md

experiment/theory.md

@@ -9,12 +9,12 @@ The instruction blocks of up counter and down counter are as shown below.
 
 <center><img src="images/img2.jpg" title="" /></center>
 
-**Count Up (CU) Bit:** - The Count Up enable bit indicates the CTU instruction is enabled. The data type used is Boolean indicated as BOOL.
-**Count Down (CD) Bit:** - The Count Up enable bit indicates the CTD instruction is enabled.
-**Done (DN) Bit:** - The done bit changes state whenever the accumulated value reaches the preset value. The data type used is Boolean indicated as BOOL.
-**Overflow (OV) Bit:** - The overflow bit indicates the counter exceeded the upper limit of 2, 147, 483, 647. The counter then roles over to -2, 147, 483, 648 and begins counting up again. The data type used is Boolean indicated as BOOL.
-**Underflow (UN) Bit:** - The underflow bit indicates that the counter exceeded the lower limit of -2, 147, 483, 647. The counter then roles over to 2, 147, 483, 647 and begins counting down again. The data type used is Boolean indicated as BOOL.
-**Preset (PRE) Bit:** - It specifies the value which the accumulated value must reach before the instruction sets the done bit. The data type used is Double integer indicated as DINT.
+**Count Up (CU) Bit:** - The Count Up enable bit indicates the CTU instruction is enabled. The data type used is Boolean indicated as BOOL.\
+**Count Down (CD) Bit:** - The Count Up enable bit indicates the CTD instruction is enabled.\
+**Done (DN) Bit:** - The done bit changes state whenever the accumulated value reaches the preset value. The data type used is Boolean indicated as BOOL.\
+**Overflow (OV) Bit:** - The overflow bit indicates the counter exceeded the upper limit of 2, 147, 483, 647. The counter then roles over to -2, 147, 483, 648 and begins counting up again. The data type used is Boolean indicated as BOOL.\
+**Underflow (UN) Bit:** - The underflow bit indicates that the counter exceeded the lower limit of -2, 147, 483, 647. The counter then roles over to 2, 147, 483, 647 and begins counting down again. The data type used is Boolean indicated as BOOL.\
+**Preset (PRE) Bit:** - It specifies the value which the accumulated value must reach before the instruction sets the done bit. The data type used is Double integer indicated as DINT.\
 **Accumulator (ACC) Bit:** - It specifies the number of transitions the instruction has counted.
 The timing diagram illustrates the functioning of all the bits in sequence.