docs: Update allow.txt for #4616 (#4726)

adding the words:
inclusivity
GAAD
WCAG

so that PR #4616 can merge

Author: vedpawar2254

.github/actions/spelling/allow.txt

@@ -221,6 +221,7 @@ ftp
 ftpd
 fuzzer
 g
+GAAD
 GAD
 gawk
 gcc
@@ -294,6 +295,7 @@ ikeydoherty
 img
 imgur
 imsahil
+inclusivity
 INI
 inosmeet
 iperf
@@ -760,6 +762,7 @@ webkitgtk
 webserver
 website
 websites
+WCAG
 wget
 whl
 wiki