Typo fix in code comment (#1997)

Summary:
"programmatically" instead of "programatically".
Pull Request resolved: #1997

Differential Revision: D14004426

fbshipit-source-id: f775eb9e69ca0f9dbd02fbe94132ebc166f82d08

src/component/contents/DraftEditorBlock.react.js

@@ -85,7 +85,7 @@ class DraftEditorBlock extends React.Component<Props> {
    * When a block is mounted and overlaps the selection state, we need to make
    * sure that the cursor is visible to match native behavior. This may not
    * be the case if the user has pressed `RETURN` or pasted some content, since
-   * programatically creating these new blocks and setting the DOM selection
+   * programmatically creating these new blocks and setting the DOM selection
    * will miss out on the browser natively scrolling to that position.
    *
    * To replicate native behavior, if the block overlaps the selection state