feat(architecture): allow instruction help to be optional

Author: ALVAROPING1

src/architecture.rs

@@ -239,7 +239,7 @@ pub struct Instruction<'a> {
     // modifying the data on deserialization
     pub definition: String,
     /// Help information of the instruction
-    pub help: &'a str,
+    pub help: Option<&'a str>,
     /// Properties of the instruction
     pub properties: Option<Vec<InstructionProperties>>,
 }