README.md in rsyntaxtree-1.2.7 vs README.md in rsyntaxtree-1.2.8

@@ -27,10 +27,11 @@
 - Head-Driven Phrase Structure Grammar
 - Cognitive Grammar
 - Construction Grammar
 - Pragmatics
 - Phonology
+- etc.
 
 **NOTE**: Some tree structures in the example gallery are experimental in the sense that they are not drawn according to conventions of the field.
 
 **Input text**
 
@@ -80,12 +81,12 @@
   -v, --vheight=<f>                    Connector Height: 0.5-5.0 (default: 2.0)
   -c, --color=<s>                      Color text and bars: modern, traditional, or off (default: modern)
   -y, --symmetrize=<s>                 Generate radically symmetrical, balanced tree: on or off (default: off)
   -r, --transparent=<s>                Make background transparent: on or off (default: off)
   -p, --polyline=<s>                   draw polyline connectors: on or off (default: off)
-  -h, --hide-default-connectors=<s>    make default connectors transparent: on or off (default: off)
+  -d, --hide-default-connectors=<s>    make default connectors transparent: on or off (default: off)
+  -h, --help                           This is a custom help message
   -e, --version                        Print version and exit
-  --help                               Show this message
 ```
 
 See the [documentation](https://yohasebe.github.io/rsyntaxtree/documentation) for more detailed info about the syntax.
 
 ## References