Update Changelog.md

Changelog.md

@@ -2,6 +2,8 @@
 
 ## Upcoming Changes
 
+More tweaks to README.
+
 ## Version 1.2
 
 Minor tweaks to help text, README.

README.md

@@ -12,3 +12,22 @@ jingle plays.
 
 Running the program with no args will default to playing a jingle every 5
 minutes.
+
+If `[player_program]` is specified (with full path) like with
+`/usr/bin/ffplay`, then the command executed will look like:
+
+    /usr/bin/ffplay <file_to_play>
+
+If `[player_args...]` is specified like with `--flag` and `--another-flag`, then
+the command executed will look like:
+
+    /usr/bin/ffplay --flag --another-flag <file_to_play>
+
+It may be recommended to use a command like:
+
+    ./break_interval 5 /my/music/file.mp3 /usr/bin/ffplay -nodisp
+
+Which will execute (every 5 minutes):
+
+    /usr/bin/ffplay -nodisp /my/music/file.mp3
+