Update boards index page chpater grid

boards/beaglebone/ai-64/index.rst

@@ -26,7 +26,7 @@ hardware examples and dozens of readily available embedded expansion options ava
 
 .. only:: html
 
-  .. grid:: 1 1 2 3
+  .. grid:: 1 1 2 2
     :margin: 4 4 0 0
     :gutter: 4
 

boards/beaglebone/ai/index.rst

@@ -25,7 +25,7 @@ automation in industrial, commercial and home applications.
 
 .. only:: html
 
-  .. grid:: 1 1 2 3
+  .. grid:: 1 1 2 2
     :margin: 4 4 0 0
     :gutter: 4
 

boards/beagleconnect/freedom/index.rst

@@ -33,7 +33,7 @@ over-the-air upgrades (OTA) capability. This MCU provides flexible support for m
    
    \begin{comment}
 
-.. grid:: 1 1 2 3
+.. grid:: 1 1 2 2
    :margin: 4 4 0 0
    :gutter: 4
 

boards/beagleplay/index.rst

@@ -33,7 +33,7 @@ sensors, actuators, indicators, human interfaces, and connectivity to a reliable
    
    \begin{comment}
 
-.. grid:: 1 1 2 3
+.. grid:: 1 1 2 2
    :margin: 4 4 0 0
    :gutter: 4
 

boards/beaglev/ahead/index.rst

@@ -26,7 +26,7 @@ RISC-V enabled pocket-size computer for anybody who want's to dive deep into the
 
 .. only:: html
 
-  .. grid:: 1 1 2 3
+  .. grid:: 1 1 2 2
     :margin: 4 4 0 0
     :gutter: 4
 

boards/beaglev/fire/index.rst

@@ -27,7 +27,7 @@ BeagleV®-Fire SBC offers unparalleled opportunities for developers, hobbyists,
 
 .. only:: html
 
-  .. grid:: 1 1 2 3
+  .. grid:: 1 1 2 2
     :margin: 4 4 0 0
     :gutter: 4