Updated doc files 2

Reference/InstructionalSites.md

@@ -1,25 +1,25 @@
-#Instructional Sites and Tools  
+# Instructional Sites and Tools  
 
-##Tools  
+## Tools  
 
-###Tinkercad  
+### Tinkercad  
 <https://www.tinkercad.com>  
 Basic CAD program to create circuit diagrams.   
 
-##IoT Instructional and Information Sites  
+## IoT Instructional and Information Sites  
 
-###Sparkfun Learn  
+### Sparkfun Learn  
 <https://learn.sparkfun.com/tutorials>   
 
-###Adafruit Tutorials  
+### Adafruit Tutorials  
 <https://learn.adafruit.com>  
 
 
-###Instructables
+### Instructables
 <https://www.instructables.com>  
 Create an account with a school email address for free teacher/student access.   
 
-###HackaDay  
+### HackaDay  
 <https://hackaday.com>.  
 Project ideas and interesting articles.