Iterable duck types

Author: gto76

README.md

@@ -1172,7 +1172,7 @@ Iterable Duck Types
 -------------------
 
 ### Iterable
-* **Only required method for iterable is iter(). It should return an iterator of its contents.**
+* **Only required method is iter(). It should return an iterator of its contents.**
 * **Contains() automatically works on any object that has iter() defined.**
 ```python
 class MyIterable:

index.html

@@ -1087,7 +1087,7 @@ <h4 id="reusablecontextmanagers">Reusable context managers:</h4>
 <h2 id="iterableducktypes"><a href="#iterableducktypes" name="iterableducktypes">#</a>Iterable Duck Types</h2>
 <h3 id="iterable">Iterable</h3>
 <ul>
-<li><strong>Only required method for iterable is iter(). It should return an iterator of its contents.</strong></li>
+<li><strong>Only required method is iter(). It should return an iterator of its contents.</strong></li>
 <li><strong>Contains() automatically works on any object that has iter() defined.</strong></li>
 </ul>
 <pre><code class="python language-python hljs"><span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">MyIterable</span>:</span>