Update readme.md

readme.md

@@ -139,7 +139,7 @@ The checks are performed using `requestAnimationFrame`, with a fallback to `setT
 
 Well, I couldn't call this an `Object.observe` polyfill without these ones.
 
-It "correctly" (considering the above limitations) supports the `"add"`, `"update"`, `"delete"` and `"preventExtensions"` events. Some work has to be done to support `"reconfigure"` and `"setPrototype"`, but not before some tests and considerations on the performances and memory load that it would involve.
+It "correctly" (considering the above limitations) supports the `"add"`, `"update"`, `"delete"`, `"preventExtensions"`, `"reconfigure"` and `"setPrototype"`.
 
 Type filtering works too when an array is passed as the third argument of `Object.observe`. Handlers don't get called if the change's type is not included in their list.
 
@@ -204,4 +204,4 @@ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+SOFTWARE.