Fix typos in index.html

index.html

@@ -760,7 +760,7 @@ <h5>
  <code>"deleteEntireSoftLine"</code>
  </td>
  <td>
- delete from to the nearest visual line break before the caret
+ delete from the nearest visual line break before the caret
  position to the nearest visual line break after the caret
  position
  </td>
@@ -1492,7 +1492,7 @@ <h5>
  </table>
  <p>
  <dfn data-dfn-for="InputEvent" data-lt=
- "targetRange">getTargetRanges()</dfn> returns an arrays
+ "targetRange">getTargetRanges()</dfn> returns an array of
  <a>StaticRanges</a> representing the text that the event will
  modify if it is not canceled. The returned <a>StaticRanges</a> MUST
  cover only the <a data-cite="infra#code-points">code points</a>
@@ -1679,7 +1679,7 @@ <h4>
  <li>
  <a><code class=
  "methods-name">InputEvent.getTargetRanges()</code></a>:
- returns an arrays of <a>StaticRanges</a> which will be
+ returns an array of <a>StaticRanges</a> which will be
  affected by the change to the DOM if it is not
  canceled.
  </li>