Create 4. Aggregation Pipelines: Let the Server Do It For You.md

Author: ortizfram

Introduction to MongoDB in Python/4. Aggregation Pipelines: Let the Server Do It For You.md

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+## 📚 Intro to Aggregation
+### 📚 Queries have implicit stages
+![image](https://user-images.githubusercontent.com/51888893/204533592-e32876e1-5043-4fd8-b96d-a1ea21813b4a.png)
+### 📚 Adding sort and skip stages
+![image](https://user-images.githubusercontent.com/51888893/204533832-631539bf-080a-4c98-a2c8-e3c6d574a376.png)
+### 📚 can i count?
+![image](https://user-images.githubusercontent.com/51888893/204533977-5e57c13f-2a3f-4ce4-a24d-24e78f04782e.png)