fix duplicate box

Author: stevencarlislewalker

video-resources.md

@@ -84,10 +84,6 @@ is not required.
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 | In doing these exercises you might find it helpful to use the `macpan2` [website](https://canmod.github.io/macpan2) as a reference. Pages that could be particularly useful are the [quick start guide](https://canmod.github.io/macpan2/articles/quickstart) and documentation for the [`mp_tmb_model_spec`](https://canmod.github.io/macpan2/reference/mp_tmb_model_spec), [`mp_per_capita_flow`](https://canmod.github.io/macpan2/reference/mp_per_capita_flow), [`mp_simulator`](https://canmod.github.io/macpan2/reference/mp_simulator), and [`mp_trajectory`](https://canmod.github.io/macpan2/reference/mp_trajectory). |
 
-| <img src="images/tip.svg" width="120" />                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
-|:----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| If you are not familIn doing these exercises you might find it helpful to use the `macpan2` [website](https://canmod.github.io/macpan2) as a reference. Pages that could be particularly useful are the [quick start guide](https://canmod.github.io/macpan2/articles/quickstart) and documentation for the [`mp_tmb_model_spec`](https://canmod.github.io/macpan2/reference/mp_tmb_model_spec), [`mp_per_capita_flow`](https://canmod.github.io/macpan2/reference/mp_per_capita_flow), [`mp_simulator`](https://canmod.github.io/macpan2/reference/mp_simulator), and [`mp_trajectory`](https://canmod.github.io/macpan2/reference/mp_trajectory). |
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 ## Additional Videos
 
 I might populate this section with additional videos either before or