Create ex3.rst

Pete Lewis · Pete Lewis · commit 5f175a29b9f4 · 2020-08-27T16:24:08.000-06:00
diff --git a/docs/ex3.rst b/docs/ex3.rst
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+
+Basic Operation
+---------------------------
+.. literalinclude:: ../examples/ex3_qwiic_serlcd_set_cursor_position.py
+    :caption: examples/ex3_qwiic_serlcd_set_cursor_position.py
+    :linenos:
+
