update docs

cucumber · Feb 9, 2018 · 00f859f · 00f859f
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diff --git a/cucumber-expressions/README.md b/cucumber-expressions/README.md
@@ -128,6 +128,16 @@ It would also match this text:
 
     I have 42 cucumbers in my belly
 
+If you ever need to match those parentheses literally, you can escape the
+first opening parenthesis with a backslash:
+
+    I have {int} cucumber(s) in my belly \(amazing!)
+
+This expression would match the following examples:
+
+    I have 1 cucumber in my belly (amazing!)
+    I have 42 cucumbers in my belly (amazing!)
+
 ## Alternative text
 
 Sometimes you want to relax your language, to make it flow better. For example: