Updated assembly type in doc gen

src/hence/firmware/documentation.md.ecr

@@ -32,13 +32,13 @@ Opcode | Argument | Stack
 `0x<%= sorted_opcodes.find! { |opc| opc[1].name == opcode.name }[0].to_s(16).rjust(2, '0') %>` | <%= opcode.arg && "`#{opcode.arg}`" %> | <%= (opcode.stack.input.size > 0 || opcode.stack.output.size > 0) ? "`#{input}--#{output}`" : nil %>
 <%- if opcode.example -%>
 
-```gnuassembler
+```assembly
 ; Example
 <%= opcode.example -%>
 ```
 <%- end -%>
 
-```gnuassembler
+```assembly
 ; Microcode
 <%= opcode.microcode -%>
 ```