Italicize a few disabled opcodes.

appdx-scriptops.asciidoc

@@ -133,11 +133,11 @@ Tables and descriptions sourced from https://en.bitcoin.it/wiki/Script[].
 | OP_0NOTEQUAL | 0x92 | If top item is 0 return 0, otherwise return 1
 | OP_ADD | 0x93 | Pop top two items, add them and push result
 | OP_SUB | 0x94 | Pop top two items, subtract first from second, push result
-| OP_MUL | 0x95 | Disabled (multiply top two items)
-| OP_DIV | 0x96 | Disabled (divide second item by first item)
-| OP_MOD | 0x97 | Disabled (remainder divide second item by first item)
-| OP_LSHIFT | 0x98 | Disabled (shift second item left by first item number of bits)
-| OP_RSHIFT | 0x99 | Disabled (shift second item right by first item number of bits)
+| _OP_MUL_ | 0x95 | Disabled (multiply top two items)
+| _OP_DIV_ | 0x96 | Disabled (divide second item by first item)
+| _OP_MOD_ | 0x97 | Disabled (remainder divide second item by first item)
+| _OP_LSHIFT_ | 0x98 | Disabled (shift second item left by first item number of bits)
+| _OP_RSHIFT_ | 0x99 | Disabled (shift second item right by first item number of bits)
 | OP_BOOLAND | 0x9a | Boolean AND of top two items
 | OP_BOOLOR | 0x9b | Boolean OR of top two items
 | OP_NUMEQUAL | 0x9c | Return TRUE if top two items are equal numbers