update documentation

Author: web-flow

docs/pool/SUMMARY.md

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+# Table of contents
+
+* [Introduction](README.md)
+* [Overview](overview.md)
+* [Installation](install.md)
+* [Quickstart](quickstart.md)
+* [Accounts](accounts.md)
+* [Orders](orders.md)
+* [Channel Leases](channel_leases.md)
+* [Batch Execution](batch_execution.md)
+* [Sidecar Channels](sidecar_channels.md)
+* [FAQs](faq.md)
+