Fix remaining comma splices in infra and smarthome articles

smarthome/kids-rfid-player/index.njk

@@ -25,7 +25,7 @@ layout: base.njk
 </ul>
 
 <h2>How it works</h2>
-<p>Each RFID card is mapped to a specific audio file on the SD card. Hold a card against the reader and the corresponding story or song starts playing. Hold the RFID keychain against the reader to pause; hold it again to resume. No other buttons exist on the device, the design intentionally minimizes interaction points so even a toddler can use it independently.</p>
+<p>Each RFID card is mapped to a specific audio file on the SD card. Hold a card against the reader and the corresponding story or song starts playing. Hold the RFID keychain against the reader to pause; hold it again to resume. No other buttons exist on the device; the design intentionally minimizes interaction points so even a toddler can use it independently.</p>
 
 <h2>Auto-shutdown behavior</h2>
 <p>The power management distinguishes between two states to avoid unnecessary battery drain:</p>
@@ -35,7 +35,7 @@ layout: base.njk
 </ul>
 
 <h2>The case</h2>
-<p>The enclosure is a custom-built retro-style wooden box, painted by hand. The name "Rocky Box" came from my son, who painted a Paw Patrol character on the front. The design is deliberately quirky and homemade rather than polished, it has character.</p>
+<p>The enclosure is a custom-built retro-style wooden box, painted by hand. The name "Rocky Box" came from my son, who painted a Paw Patrol character on the front. The design is deliberately quirky and homemade rather than polished; it has character.</p>
 
 <h2>What's missing (by design)</h2>
 <ul>