how to use fix

howtouse.html

@@ -54,7 +54,7 @@ make, gcc-avr, avr-libc, avrdude (for flashing), flex, bison, make
 <h4>Basic examples</h4>
 <p>There are several short and quick examples applications for getting started with multi-tasking embedded system programming using Xinu OS (some of them come from the <a href="https://xinu.cs.purdue.edu/#textbook">
 Comer's Book</a>).
-These are easy to understand, just follow the few steps in the README file of each one. Check them here: <a href="https://github.com/zrafa/xinu-avr/apps/">Xinu examples apps source code.</a></p>
+These are easy to understand, just follow the few steps in the README file of each one. Check them here: <a href="https://github.com/zrafa/xinu-avr/tree/master/apps">Xinu examples apps source code.</a></p>
 
 <p><strong>Note:</strong> the only requirement for proper concurrent programming is to understand basic OS topics, like multi-task programming (priorities, processes states, etc), syncronization between processes, semaphores and mutexes. If you not, don't worry, you can play with the examples for a while while reading about those topics in some OS book.
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