Added Forward+ to the table. (#487)

Author: H3idi-X

com.unity.toonshader/Documentation~/FeatureModel_en.md

@@ -96,6 +96,7 @@
 | Substitute for directional light 	                                                                                                                                                                        | N.A.	               | N.A.	  | OK	                 | To get around the limitation that multiple directional lights can't cast shadows at the same time. |
 | ***17. Rendering Paths*** 	                                                                                                                                                                               | 	                   | 	      | 	                   |  	|
 | Forward 	                                                                                                                                                                                                 | OK	                 | OK	    | OK	                 | |
+| Forward+ 	                                                                                                                                                                                                 | N/A	                 | OK	    | N/A	                 | |
 | Deferred 	                                                                                                                                                                                                | NO	                 | NO	    | OK	                 | |
 | Deferred+ 	                                                                                                                                                               | N/A	             | NO	    | N/A	               | |