Added more content about how pipelines works

Author: maheshwarip

src/assets/images/pipelines/architecture.png

@@ -5,4 +5,8 @@ sidebar:
   order: 1
 ---
 
-TODO
+Cloudflare Pipelines lets you ingest high volumes of real time data, and load the data into R2. It's a useful tool to build a data lake of clickstream data, or load logs from a service to query later. Pipelines let you do this without managing any of the underlying infrastructure; you can just create a Pipeline and send data.
+
+![Pipelines Architecture](~/assets/images/pipelines/architecture.png)
+
+More coming soon!