doc: split up yambar-modules

Closes #15

doc/yambar-modules-alsa.5.scd

@@ -0,0 +1,50 @@
+yambar-modules-alsa(5)
+
+# NAME
+alsa - Monitors an alsa soundcard for volume and mute/unmute changes
+
+# TAGS
+
+[[ *Name*
+:[ *Type*
+:[ *Description*
+|  volume
+:  range
+:  Volume level, with min and max as start and end range values
+|  percent
+:  range
+:  Volume level, as a percentage
+|  muted
+:  bool
+:  True if muted, otherwise false
+
+
+# CONFIGURATION
+
+[[ *Name*
+:[ *Type*
+:[ *Req*
+:[ *Description*
+|  card
+:  string
+:  yes
+:  The soundcard name. _Default_ might work.
+|  mixer
+:  string
+:  yes
+:  Mixer channel to monitor. _Master_ might work.
+
+# EXAMPLES
+
+```
+bar:
+  left:
+    - alsa:
+        card: hw:PCH
+        mixer: Master
+        content: {string: {text: "{volume}"}}
+```
+
+# SEE ALSO
+
+*yambar-modules*(5), *yambar-particles*(5), *yambar-tags*(5), *yambar-decorations*(5)