Update README.md

README.md

@@ -10,7 +10,7 @@
 ## Projects with the students
 * [`Spatial clustering and correlation for building energy`](https://code.ornl.gov/ok0/building-energy-use)
 
-## Tutorial
+## Tutorials
 * [`Tutorial on Intelligent Control of IoT-based Systems`](https://code.ornl.gov/ok0/tutorial-on-intelligent-control-of-iot-based-systems)
 * [`Data Science for Internet of Things, Case Study: Smart Home`](https://github.com/OKotevska/Data-Science-for-Internet-of-Things)