Convention-Guide.md

@@ -16,7 +16,7 @@ When designing a State Machine, you need to know the purpose. Each State Machine
 - Use [Protocol Transition][] when you want to explain the lifecycle of some processes 
 
 #### Creating deterministic A.I
-- use Behaviour Tree ([HSFM & Behaviour Tree](https://web.stanford.edu/class/cs123/lectures/CS123_lec08_HFSM_BT.pdf)) **or**
+- use Behaviour Tree ([HSFM vs Behaviour Tree](https://web.stanford.edu/class/cs123/lectures/CS123_lec08_HFSM_BT.pdf)) **or**
 - shape it as acyclic graph (no self or backward transition)
 
 #### Manage resources or data