Update zha.markdown best practices section title (home-assistant#20801)

Hedda · web-flow · commit 49667ed6c404 · 2021-12-21T14:40:40.000+01:00
diff --git a/source/_integrations/zha.markdown b/source/_integrations/zha.markdown
@@ -343,7 +343,9 @@ To add a new device:
 1. Reset your Zigbee devices according to the device instructions provided by the manufacturer (e.g., turn on/off lights up to 10 times, switches usually have a reset button/pin). It might take a few seconds for the devices to appear. You can click on **Show logs** for more verbose output.
 1. Once the device is found, it will appear on that page and will be automatically added to your devices. You can optionally change its name and add it to an area (you can change this later). You can search again to add another device, or you can go back to the list of added devices.
 
-### Best practices for avoiding pairing difficulties
+### Best practices to avoid pairing/connection difficulties
+
+Verify that you try to follow recommended best practices to avoid pairing and/or connection issues:
 
 - If possible try to pair your Zigbee devices in their intended final location, (and not pair it next to the Zigbee coordinator and then need to move it after). 
   - Pairing a Zigbee device next to the Zigbee coordinator and then moving it later can result in dropped/lost connections or other issues. 
@@ -352,7 +354,7 @@ To add a new device:
     - Some people have reported replacing the battery on their newly received Xiaomi/Aqara devices solved pairing issues. 
 - Check that you have enough Zigbee router devices (also known as Zigbee signal repeaters or range extenders) and if you do not have any, invest and add some mains-powered devices that will work as Zigbee routers. 
     - Aim to start out with mains-powered devices before adding battery-operated devices as a "weak" Zigbee network mesh (e.g., the device is too far from the Zigbee coordinator or a Zigbee router) may prevent some devices from being paired. Zigbee router devices are also needed to increase the maximum of devices that can be connected to your Zigbee mesh network. 
-    - Note that some Zigbee devices are not fully compatible with all brands of Zigbee router devices. Xiaomi/Aqara devices are for example known not to work with Zigbee router devices from Centralite, General Electrics, Iris, Ledvance/OSRAM/ LIGHTIFY/Sylvania, Orvibo, PEQ, Securifi, and SmartThings/Samsung. Better results can usually be achieved by using mains-powered devices IKEA and Nue/3A Home or dedicated DIY routing devices based on Texas Instruments CC253x/CC26x2 and XBee Series 2/3 Zigbee radios. 
+    - Note that some Zigbee devices are not fully compatible with all brands of Zigbee router devices. Xiaomi/Aqara devices are for example known not to work with Zigbee router devices from Centralite, General Electrics, Iris, Ledvance/OSRAM, LIGHTIFY/Sylvania, Orvibo, PEQ, Securifi, and SmartThings/Samsung. Better results can usually be achieved by using mains-powered devices IKEA and Nue/3A Home or dedicated DIY routing devices based on Texas Instruments CC253x/CC26x2 and XBee Series 2/3 Zigbee radios. 
 - Be patient as the pairing of some Zigbee devices may require multiple attempts and you may sometimes need to try again and again. 
     - Some devices, like example those from Xiaomi/Aqara, are known to not be 100% compliant with the standard Zigbee specifications and may therefore require many paring attempts over 10-20 minutes or longer. 
 
