Clarify Scope

Move examples of well-known model architectures from the bullet
list into the text section that talks about priority use cases.
Add transformers as another example.

Grammar fix: s/Allow/Allows

Fix #23

charter.html

@@ -208,24 +208,25 @@ <h2>
           This Web API for neural network inference hardware acceleration:
         </p>
         <ul>
-          <li>Allow to construct a neural network computational graph by common
-          building blocks, including constant values and base operations such
-          as convolution, pooling, softmax, normalization, fully connected,
-          activation, recurrent neural network (RNN) and long short-term memory
-          (LSTM);
+          <li>Allows to construct a neural network computational graph by common
+          building blocks required by well-known model architectures: constant
+          values and base operations such as convolution, pooling, softmax,
+          normalization, fully connected, and activation;
           </li>
-          <li>Allow to compile the neural network to native optimized format
+          <li>Allows to compile the neural network to native optimized format
           for hardware execution;
           </li>
-          <li>Allow to setup input from various sources on the Web, e.g. array
+          <li>Allows to setup input from various sources on the Web, e.g. array
           buffers, media streams, schedule the asynchronous hardware execution,
           and retrieve the output when hardware execution completes.
           </li>
         </ul>
         <p>
           This Working Group puts priority on building blocks required by
-          well-known model architectures in the fields of Computer Vision,
-          Natural Language Processing and Speech Recognition.
+          well-known model architectures such as recurrent neural network
+          (RNN), long short-term memory (LSTM) and transformers in the fields
+          of Computer Vision, Natural Language Processing and Speech
+          Recognition.
         </p>
         <p>
           The APIs in scope of this group will not be tied to any particular