docs: add docs about Ingress feature comparison (#526)

apache · Jun 3, 2021 · 5c1aa5e · 5c1aa5e
1 parent d510a8a
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@@ -47,6 +47,8 @@ This project is currently considered experimental.
 * Ingress controller itself as a pluggable hot-reload component.
 * Multi-cluster configuration distribution.
 
+[More about comparison among multiple Ingress Controllers.](https://docs.google.com/spreadsheets/d/191WWNpjJ2za6-nbG4ZoUMXMpUK8KlCIosvQB0f-oq3k/edit?ts=5fd6c769#gid=907731238)
+
 ## Internal Architecture
 
 <img src="./docs/assets/images/apisix-ingress-controller-arch.png" alt="module" width="600" height="313" />