Documentation: Fix feature name for object inclined edge foundations

docs/newgrf-additions.html

@@ -393,7 +393,7 @@
 	<tr><td>2</td><td>4</td><td>Change z-position for the building sprite to the height of the edge</td></tr>
 	<tr><td>3</td><td>8</td><td>If the height of the edge is lower than the maximum height of the tile, build a foundation</td></tr>
 	<tr><td>4</td><td>10</td><td>Use inclined instead of a flat foundations where possible. (Slopes with one corner raised where the height of the edge is at the maximum height of the tile).<br />
-				Support for this bit is indicated by the feature name: <font face="monospace">action0_object_flood_resistant</font>, version 2.</td></tr>
+				Support for this bit is indicated by the feature name: <font face="monospace">action0_object_edge_foundation_mode</font>, version 2.</td></tr>
 	</table>
 	</p>
 	<p>This is indicated by the feature name: <font face="monospace">action0_object_edge_foundation_mode</font>, version 1</p>