[DOC] fix summary to add pattern extraction
diff --git a/doc/configuration.txt b/doc/configuration.txt
index 509c281..8875233 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -52,7 +52,7 @@
6. HTTP header manipulation
-7. Using ACLs
+7. Using ACLs and pattern extraction
7.1. Matching integers
7.2. Matching strings
7.3. Matching regular expressions (regexes)
@@ -63,6 +63,7 @@
7.5.3. Matching at Layer 7
7.6. Pre-defined ACLs
7.7. Using ACLs to form conditions
+7.8. Pattern extraction
8. Logging
8.1. Log levels