Update api.rst to renamed file

tekktrik · tekktrik · commit 199f434db2cc · 2022-02-21T11:45:13.000-05:00
diff --git a/docs/api.rst b/docs/api.rst
@@ -4,5 +4,5 @@
 .. If your library file(s) are nested in a directory (e.g. /adafruit_foo/foo.py)
 .. use this format as the module name: "adafruit_foo.foo"
 
-.. automodule:: displayio_effects.throttle_effect
+.. automodule:: displayio_effects.fluctuation_effect
     :members:
