diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,2 +1,21 @@
 # haproxyconf-2022
 
+## Request lifecycle
+
+1. HAProxy frontend external
+2. HAProxy backend varnish
+3. Varnish
+4. HAProxy frontend internal
+5. HAProxy backend internal
+6. Web-server
+
+## PROXY protocol
+
+## Additional features
+
+* reject request at TCP-level for maximum efficiency
+* reject request at HTTP-level for maximum customizability
+* per-site maintenance mode (with IP-whitelist bypass)
+* customizable DEBUG level in HTTP headers
+* per-site custom error response
+* Let's Encrypt challenge pass-through