Merge pull request #3882 from hmfhmf/patch-1

Fix ALSA typo.

Author: nathan-contino

documentation/asciidoc/computers/camera/rpicam_options_libav.adoc

@@ -44,7 +44,7 @@ Sets the audio sampling rate in Hz. Accepts numeric input. `0` uses the input sa
 
 ==== `audio-device`
 
-Select an ALSO input device for audio recording. For a list of available devices, run the following command:
+Select an ALSA input device for audio recording. For a list of available devices, run the following command:
 
 [source,console]
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