Update 3. Get Only What You Need, and Fast.md

Author: ortizfram

Introduction to MongoDB in Python/3. Get Only What You Need, and Fast.md

@@ -1,4 +1,5 @@
- `projection` reducing data to fewer dimentions. data to **speak up**
+### ❓
+`projection` reducing data to fewer dimentions. data to **speak up**
 ### 📚 project in MongoDB
  ![image](https://user-images.githubusercontent.com/51888893/204366718-ef8d4286-c012-4e38-a3d5-333b909cf9e0.png)
 ### 📚 missing fields