docs: move GLUON_WLAN_MESH to site.rst & improve text

fixes an error and removes the focus on ath10k

docs/user/getting_started.rst

@@ -155,15 +155,6 @@ usually be set on the command line or in ``site.mk``.
 Common variables
 ................
 
-GLUON_WLAN_MESH
-  While Gluon does support some hardware with ath10k-based 5GHz WLAN. ath10k can't support IBSS and 11s
-  meshing in the same image due to WLAN firmware restrictions.
-
-  Setting GLUON_MESH_MESH to ``11s`` or ``ibss`` will enable generation of images for ath10k devices
-  and install the firmware for the corresponding WLAN mode. Specifically setting to ``11s`` will also
-  enable the generation of images for targets that are able to run only AP+11s but not AP+IBSS, like
-  ralink or mediatek. Defaults to ``11s``.
-
 GLUON_BRANCH
   Sets the default branch of the autoupdater. If unset, the autoupdater is disabled
   by default. For the ``make manifest`` command, GLUON_BRANCH defines the branch to

docs/user/site.rst

@@ -413,6 +413,11 @@ GLUON_LANGS
     List of languages (as two-letter-codes) to be included in the web interface. Should always contain
     ``en``.
 
+GLUON_WLAN_MESH
+  Setting this to ``11s`` or ``ibss`` will enable generation of matching images for devices which don't
+  support both meshing modes, either at all (e.g. ralink and mediatek don't support AP+IBSS) or in the
+  same firmware (ath10k-based 5GHz). Defaults to ``11s``.
+
 Features
 ^^^^^^^^