Update content/hacking/01.software/PortManipulation/content.md

Co-authored-by: Karl Söderby <35461661+karlsoderby@users.noreply.github.com>

Author: jhansson-ard

content/hacking/01.software/PortManipulation/content.md

@@ -81,6 +81,6 @@ So you might be saying to yourself, great, why would I ever want to use this stu
 * Sometimes you might need to set multiple output pins at exactly the same time. Calling digitalWrite(10,HIGH); followed by digitalWrite(11,HIGH); will cause pin 10 to go HIGH several microseconds before pin 11, which may confuse certain time-sensitive external digital circuits you have hooked up. Alternatively, you could set both pins high at exactly the same moment in time using PORTB |= B1100;
 * If you are running low on program memory, you can use these tricks to make your code smaller. It requires a lot fewer bytes of compiled code to simultaneously write a bunch of hardware pins simultaneously via the port registers than it would using a for loop to set each pin separately. In some cases, this might make the difference between your program fitting in flash memory or not!
 
-### See 
+### Read More
 
 * [Pin Mapping of Atmega 168/328](http://arduino.cc/en/Hacking/Atmega168Hardware)