avoid exceptions to stay compatible with ESP8266

add limitaion information to readme

usermods/TetrisAI_v2/gridbw.h

@@ -34,7 +34,7 @@ public:
     {
         if (width > 32)
         {
-            throw std::invalid_argument("maximal width is 32");
+            this->width = 32;
         }
     }
 

usermods/TetrisAI_v2/readme.md

@@ -30,4 +30,7 @@ It is best to set the background color to black 🖤, the border color to light
 
 ## Best results
 
- If the speed is set to be a little bit faster than a good human could play with maximal intelligence and very few mistakes it makes people furious/happy at a party 😉.
+ If the speed is set to be a little bit faster than a good human could play with maximal intelligence and very few mistakes it makes people furious/happy at a party 😉.
+
+## Limits
+The game grid is limited to a maximum width of 32 and a maximum height of 255 due to the internal structure of the code.