DOC: Getting started tutorials feedback from EOSS meeting
@WillAyd and I got some good feedback regarding the tutorials @stijnvanhoey [created](https://pandas.io/docs/getting_started/intro_tutorials/index.html) while at the CZI EOSS Kickoff Meeting. 

1. Generally more white space between pictures and texts/headers
(example image above): https://pandas.io/docs/getting_started/intro_tutorials/01_table_oriented.html#each-column-in-a-dataframe-is-a-series

2. The blue boxes that contain `To user guide` should be replaced by a question like `Want more information?`
(example blue box above): https://pandas.io/docs/getting_started/intro_tutorials/03_subset_data.html#how-do-i-filter-specific-rows-from-a-dataframe

3. h1 headings appear too similar in size to an h2 heading when they follow each other
(example) https://pandas.io/docs/getting_started/intro_tutorials/06_calculate_statistics.html#how-to-calculate-summary-statistics

4. Some of the data topics seems to domain specific
(example) https://pandas.io/docs/getting_started/intro_tutorials/09_timeseries.html

5. The different topics within the page (sections that start with a h1 header) could be separated more clearly
(example in the section separation here): https://pandas.io/docs/getting_started/intro_tutorials/07_reshape_table_layout.html#pivot-table

6. The pandas cheatsheet should be linked in the `Getting started` section: https://pandas.io/docs/getting_started/index.html#getting-started

7. Mention `tidyverse` in `Comparisons with R/ R libraries`: https://pandas.io/docs/getting_started/comparison/comparison_with_r.html

8. The pivot table diagram was not terribly intuitive. Recommended to use values instead of colors
 (example) https://pandas.io/docs/getting_started/intro_tutorials/07_reshape_table_layout.html#pivot-table

