From a4e96b8820c2120699c952b6dd4481c9e8d5d8d8 Mon Sep 17 00:00:00 2001
From: Scott Hoyt <scott@wildonion.io>
Date: Mon, 25 Jan 2016 13:09:32 -0800
Subject: [PATCH] Updated README

---
 README.md | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 9dcb93fc2e..2982ecd417 100644
--- a/README.md
+++ b/README.md
@@ -210,7 +210,27 @@ This is what the output would look like:
 
 ![](custom-rule.png)
 
-You can define as many `custom_rules`
+By default, custom rules will match against all syntax kinds. You can filter
+the matches by providing one or more `match_kinds`:
+
+* argument
+* attribute.builtin
+* attribute.id
+* buildconfig.id
+* buildconfig.keyword
+* comment
+* comment.mark
+* comment.url
+* doccomment
+* doccomment.field
+* identifier
+* keyword
+* number
+* objectliteral
+* parameter
+* placeholder
+* string_interpolation_anchor
+* typeidentifier
 
 #### Nested Configurations