Update FEATURES.md

Author: vera121

FEATURES.md

@@ -1,6 +1,6 @@
 # A Short Summary of New Features in Synopsys Caffe
 
-Synopsys Caffe Version: 2020.09  
+Synopsys Caffe Version: 2020.12  
 New added features are compared with the original BVLC Caffe 1.0.0
 
 ## evconvert (TensorFlow/ONNX/... to Caffe Converter) related  
@@ -214,6 +214,8 @@ normalize_layer
 permute_layer  
 prior_box_layer  
 smooth_L1_loss_layer  
+ssd_decoder_layer  
+ssd_sort_layer  
 video_data_layer