pages*: improve list placeholders and wording of descriptions (#12111)

* pages*: improve wording and list placeholders

* clamav: fix verb tenses

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* buzzphrase: use k instead of n for number of phrases

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* adguardhome: use non-default instead of different

* adguardhome: use configuration instead of config

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

* goimports, module: fix list placeholders

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

* pages*: leave stems and extensions in the same placeholders

* pages*: fix list placeholders

* pages*: fix list placeholders

* pages*: apply suggestions from code review

Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

* qpdf: enclose n with backticks

Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

---------

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>
Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>
Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

pages/common/play.md

@@ -6,16 +6,16 @@
 
 - Play the given audio file:
 
-`play {{audiofile}}`
+`play {{path/to/audio_file}}`
 
 - Play the given audio files:
 
-`play {{audiofile1}} {{audiofile2}}`
+`play {{path/to/audio_file1 path/to/audio_file2 ...}}`
 
 - Play the given audio at twice the speed:
 
-`play {{audiofile}} speed 2.0`
+`play {{path/to/audio_file}} speed 2.0`
 
 - Play the given audio in reverse:
 
-`play {{audiofile}} reverse`
+`play {{path/to/audio_file}} reverse`