Remove disclaimers in README (#180)

These are already covered by the official MIT LICENSE

README.md

@@ -2,25 +2,13 @@
 
 The official Node.js library for Coinbase's [GDAX API](https://docs.gdax.com/).
 
-*Note: this library may be subtly broken or buggy. The code is released under
-the MIT License – please take the following message to heart:*
-
-> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-> IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-> 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.
-
 ## Features
 
 * Easy functionality to use in programmatic trading
 * A customizable, websocket-synced Order Book implementation
 * API clients with convenient methods for every API endpoint
 * Abstracted interfaces – don't worry about HMAC signing or JSON formatting; the
   library does it for you
-* Semantic versioning
 
 ## Installation