added keybind for update

UltiSnips/verilog.snippets

@@ -26,3 +26,19 @@ always @($1) begin
 	$2
 end$0
 endsnippet
+
+snippet ,byte "set bus to size of a byte" A
+[7:0]$0
+endsnippet
+
+snippet ,half "set bus to size of half word" A
+[15:0]$0
+endsnippet
+
+snippet ,word "set bus to size of a word" A
+[31:0]$0
+endsnippet
+
+snippet ,double "set bus to size of a double word" A
+[63:0]$0
+endsnippet