README.md in json_select-0.1.3 vs README.md in json_select-0.1.4

@@ -51,11 +51,62 @@
 JSONSelect('string:first-child').test(json)    # => true
 JSONSelect('string:first-child').match(json)   # => "window"
 JSONSelect('string:first-child').matches(json) # => ["window", "beer"]
 ```
 
+## Language support
+
+✓ — **Level 1** — `*`<br>
+Any node
+
+✓ — **Level 1** — `T`<br>
+A node of type `T`, where `T` is one `string`, `number`, `object`, `array`, `boolean`, or `null`
+
+✓ — **Level 1** — `T.key`<br>
+A node of type `T` which is the child of an object and is the value its parents key property
+
+✓ — **Level 1** — `T."complex key"`<br>
+Same as previous, but with property name specified as a JSON string
+
+✓ — **Level 1** — `T:root`<br>
+A node of type `T` which is the root of the JSON document
+
+✓ — **Level 1** — `T:nth-child(n)`<br>
+A node of type `T` which is the nth child of an array parent
+
+✓ — **Level 2** — `T:nth-last-child(n)`<br>
+A node of type `T` which is the nth child of an array parent counting from the end
+
+✓ — **Level 1** — `T:first-child`<br>
+A node of type `T` which is the first child of an array parent (equivalent to `T:nth-child(1)`)
+
+✓ — **Level 2** — `T:last-child`<br>
+A node of type `T` which is the last child of an array parent (equivalent to `T:nth-last-child(1)`)
+
+✓ — **Level 2** — `T:only-child`<br>
+A node of type `T` which is the only child of an array parent
+
+✓ — **Level 2** — `T:empty`<br>
+A node of type `T` which is an array or object with no child
+
+✓ — **Level 1** — `T U`<br>
+A node of type `U` with an ancestor of type `T`
+
+✓ — **Level 1** — `T > U`<br>
+A node of type `U` with a parent of type `T`
+
+✗ — **Level 2** — `T ~ U`<br>
+A node of type `U` with a sibling of type `T`
+
+✓ — **Level 1** — `S1, S2`<br>
+Any node which matches either selector `S1` or `S2`
+
+✗ — **Level 3** — `T:has(S)`<br>
+A node of type `T` which has a child node satisfying the selector `S`
+
+
 ## Note on Patches/Pull Requests
- 
+
 * Fork the project.
 * Make your feature addition or bug fix.
 * Add tests for it. This is important so I don't break it in a future version
   unintentionally.
 * Commit, do not mess with `Rakefile` or version. (if you want to have your
\ No newline at end of file