Suggest for the st.empty documentation

[lde2015]

Link to doc page in question (if any):
https://docs.streamlit.io/library/api-reference/layout/st.empty

Name of the Streamlit feature whose docs need improvement:

What you think the docs should say:
>>>
>>> # Replace the placeholder with some text:
>>> placeholder.text("Hello")
>>> time.sleep(5)
>>>
>>> # Replace the text with a chart:
>>> placeholder.line_chart({"data": [1, 5, 2, 6]})
>>> time.sleep(5)
>>>
>>> # Replace the chart with several elements:
>>> with placeholder.container():
... st.write("This is one element")
... st.write("This is another")
...
>>> time.sleep(5)
>>>
>>> # Clear all those elements:
>>> placeholder.empty()
>>> time.sleep(0.01)
>>>
>>> # Replace the chart again:
>>> with placeholder.container():
>>> st.write("===> This is another one !!!")