Fix spelling mistakes.

Author: aentinger

examples/Threading_Basics/Thermostat/Thermostat.ino

@@ -6,9 +6,9 @@
  * which perform the act of actual room temperature control.
  * 
  * Note: While there is only a single temperature "source" there are
- * multiple temperature "sinks". The source/sink paradigm is contructed
+ * multiple temperature "sinks". The source/sink paradigm is constructed
  * in such a way, that each sink is guaranteed to see every value provided
- * by a source. This is something that can not be modelled using the shared
+ * by a source. This is something that can not be modeled using the shared
  * variable abstraction.
  */