regex, attempt #final

docs/update_protocol.md

@@ -4,7 +4,7 @@
 
 <br>
 
-### 2024/6/6 - last update 1.1.0 >> 1.1.1
+### 2024/6/6 - $\textsf{update\ 1.1.0\ >>\ {\color{pink}1.1.1}}$
 
 - $\textsf{\color{red}Bugfix:}$ In desktop-mode (width > 1024px), the "x" to close the gallery slider will change opacity while being hovered. [Before: The "x" button did not change the opacity while being hovered.]