Update doc/api/esm.md

bmeck · DerekNonGeneric · web-flow · commit d7d8024ac61b · 2020-05-19T14:02:48.000-05:00
Co-authored-by: Derek Lewis &lt;DerekNonGeneric@inf.is&gt;
diff --git a/doc/api/esm.md b/doc/api/esm.md
@@ -1201,7 +1201,7 @@ acceptable forms of source values are for a module when parsing. This can be one
 of the following:
 
 | `format` | Description | Acceptable Types For `source` Returned by `getSource` or `transformSource` |
-| --- | --- |
+| --- | --- | --- |
 | `'builtin'` | Load a Node.js builtin module | Not applicable |
 | `'commonjs'` | Load a Node.js CommonJS module | Not applicable |
 | `'dynamic'` | Use a [dynamic instantiate hook][] | Not applicable |
