Update README.md

README.md

@@ -29,7 +29,7 @@ Operators
 | `*`                       | Wildcard. Available anywhere a name or numeric are required.       |
 | `..`                      | Deep scan. Available anywhere a name is required.                  |
 | `.<name>`                 | Dot-notated child                                                  |
-| `['<name>' (, '<name>)']` | Bracket-notated child or children                                  |
+| `['<name>' (, '<name>')]` | Bracket-notated child or children                                  |
 | `[<number> (, <number>)]` | Array index or indexes                                             |
 | `[start:end]`             | Array slice operator                                               |
 | `[?(<expression>)]`       | Filter expression. Expression must evaluate to a boolean value.    |
@@ -74,7 +74,8 @@ Given the
             "color": "red",
             "price": 19.95
         }
-    }
+    },
+    "expensive price": 10
 }
 ```
 
@@ -93,6 +94,7 @@ Given the
 | `$..book[2:]`                 | Book number two from tail           |
 | `$..book[?(@.isbn)]`          | All books with an ISBN number       |
 | `$.store.book[?(@.price < 10)]` | All books in store cheaper than 10  |
+| `$.store.book[?(@.price <= $['expensive price'])]` | All books in store that are not "expensive"  |
 | `$..*`                        | Give me every thing you got         |