diff --git a/README.md b/README.md
index 0b3a405..efcb360 100644
--- a/README.md
+++ b/README.md
@@ -120,13 +120,13 @@ const isValidBrowser = browser.satisfies({
   // or in general
   chrome: "~20.1.1432",
   firefox: ">31",
-  opera: ">=22"
+  opera: ">=22",
 
   // also supports equality operator
   chrome: "=20.1.1432", // will match particular build only
 
   // and loose-equality operator
-  chrome: "~20"         // will match any 20.* sub-version
+  chrome: "~20",        // will match any 20.* sub-version
   chrome: "~20.1"       // will match any 20.1.* sub-version (20.1.19 as well as 20.1.12.42-alpha.1)
 });
 ```