Update README.md - make the arguments to choose bolded

README.md

@@ -11,11 +11,11 @@ Execute the scipt via cmd. BaslerChangeParameters.py 'argument' be sure to be in
 for e.g. python BaslerChangeParameters.py read
 
 **arguments to choose:**
-:gain: increase the brightness of the image output
-    :delay: allows to determine the period of time between the detection of the trigger signal and the actual start of the exposure
-    :exposure: specifies how long the image sensor is exposed to light during image acquisition.
-    :read: reads out all the parameters that can be used as arguments 
-    :fps: allows you to determine the estimated frame rate with the current camera settings.
+:**gain**: increase the brightness of the image output
+:**delay**: allows to determine the period of time between the detection of the trigger signal and the actual start of the exposure
+:**exposure**: specifies how long the image sensor is exposed to light during image acquisition.
+:**read**: reads out all the parameters that can be used as arguments 
+:**fps**: allows you to determine the estimated frame rate with the current camera settings.
 
 
 ##### Next steps