docs: update usage guide for MCC instance and note formatting

- Removed unnecessary period from the MCC instance reference.
- Reorganized the note section to improve clarity, moving it to a more appropriate location and ensuring consistent formatting for examples involving single and double quotes.

docs/guide/usage.md

@@ -570,7 +570,7 @@ In scripts and remote control, no slash is needed to perform the command, eg. `q
 
   The condition is always returned as a boolean, so only comparison can be done, if needed cast the expression result to bool.
 
-  Also the instance of MCC is available with `MCC.`.
+  Also the instance of MCC is available with `MCC`.
 
   <div class="custom-container note"><p class="custom-container-title">Note</p>
 
@@ -591,14 +591,6 @@ In scripts and remote control, no slash is needed to perform the command, eg. `q
   /execif 'test == "Something"' "send Success!"
   ```
 
-  <div class="custom-container note"><p class="custom-container-title">Note</p>
-
-  **You can use single quote (`'`) to wrap your expression if the expression contains double quote (`"`)**
-
-  **Adding back-slash (`\`) before the double quote will also work (`/execif "test == \"Something\"" "send Success!"`)**
-
-  </div>
-
   ```
   /set test2=1
   /execif 'test2 == "1"' "send Success 2!"
@@ -622,6 +614,12 @@ In scripts and remote control, no slash is needed to perform the command, eg. `q
   /execif "1 == 1" "execmulti send 1 -> send 2 -> send 3"
   ```
 
+- **Note**
+
+  **You can use single quote (`'`) to wrap your expression if the expression contains double quote (`"`)**
+
+  **Adding back-slash (`\`) before the double quote will also work (`/execif "test == \"Something\"" "send Success!"`)**
+
 </details>
 
 <details>