Video added on self study sections

2-farm/lessons/1-predict-plant-growth/README.md

@@ -35,11 +35,7 @@ Some techniques enabled by digital agriculture are:
 * Pest control - farmers can use cameras on automated robots or drones to check for pests, then apply pesticides only where needed, reducing the amount of pesticides used and reducing pesticide run-off into local water supplies.
 
 ✅ Do some research. What other techniques are used to improve farming yields?
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-<a href="https://www.youtube.com/watch?v=KIEOuKD9KX8" target="_blank">Farming Technologies</a>
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-<a href="https://www.youtube.com/watch?v=AmVNwilQJvc" target="_blank">China's Farming</a>
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 > 🎓 The term 'Precision Agriculture' is used to define observing, measuring and responding to crops on a per-field basis, or even on parts of a field. This includes measuring water, nutrient and pest levels and responding accurately, such as watering only a small part of a field.
 
 ## Why is temperature important when farming?
@@ -268,7 +264,11 @@ For these, find if there are sensors that can measure them. What about actuators
 Read more on digital agriculture on the [Digital Agriculture Wikipedia page](https://wikipedia.org/wiki/Digital_agriculture). Also read more about precision agriculture the [Precision Agriculture Wikipedia page](https://wikipedia.org/wiki/Precision_agriculture).
 
 The full growing degree days calculation is more complicated than the simplified one given here. Read more about the more complicated equation and how to deal with temperatures below the baseline on the [Growing Degree Day Wikipedia page](https://wikipedia.org/wiki/Growing_degree-day).
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+<br>
+<a href="https://www.youtube.com/watch?v=KIEOuKD9KX8" target="_blank">Farming Technologies</a>
+<br>
+<a href="https://www.youtube.com/watch?v=AmVNwilQJvc" target="_blank">China's Farming</a>
+<br>
 ## Assignment
 
 [Visualize GDD data using a Jupyter Notebook](assignment.md)