Merge pull request #1829 from arduino/sebromero/nano-matter-fixes

Fix XHTML issues

Author: sebromero

content/hardware/_unlisted/boards/nano-matter/datasheet/datasheet.md

@@ -96,11 +96,11 @@ The main features are highlighted in the table shown below.
     <td>Dimensions</td>
     <td>18 mm x 45 mm</td>
   </tr>
-  <tr>
   <tr>
     <td>Weight</td>
     <td>4 g</td>
   </tr>
+  <tr>
     <td>Pinout features</td>
     <td>Castellated pins allow the board to be SMD soldered on a custom carrier</td>
   </tr>
@@ -221,9 +221,6 @@ A detailed figure below illustrates the power options available on the Nano Matt
 <strong>Safety Note:</strong> Disconnect power before board modifications. Avoid short-circuiting. Refer to the full guide for more safety tips.
 </div>
 
-</div>
-
-
 <div style="page-break-after: always;"></div>
 
 ## Device Operation