2023 week 19: Childcare Costs. (#557)

Closes #516

Author: jonthegeek

README.md

@@ -140,6 +140,7 @@ Need a **reminder**? There are [extensions](https://chrome.google.com/webstore/d
 | 16 | `2023-04-18` | [Neolithic Founder Crops](data/2023/2023-04-18/readme.md) | [The "Neolithic Founder Crops"" in Southwest Asia: Research Compendium](https://github.com/joeroe/SWAsiaNeolithicFounderCrops/) | [Revisiting the concept of the 'Neolithic Founder Crops' in southwest Asia](https://link.springer.com/article/10.1007/s00334-023-00917-1) |
 | 17 | `2023-04-25` | [London Marathon](data/2023/2023-04-25/readme.md) | [London Marathon R package](https://github.com/nrennie/LondonMarathon) | [Scraping London Marathon data with {rvest}](https://nrennie.rbind.io/blog/web-scraping-rvest-london-marathon/) |
 | 18 | `2023-05-02` | [The Portal Project](data/2023/2023-05-02/readme.md) | [Portal Project Data](https://github.com/weecology/portaldata) | [Portal Project](https://portal.weecology.org/) |
+| 19 | `2023-05-09` | [Childcare Costs](data/2023/2023-05-09/readme.md) | [National Database of Childcare Prices](https://www.dol.gov/agencies/wb/topics/featured-childcare) | [National Database of Childcare Prices](https://www.dol.gov/agencies/wb/topics/featured-childcare) |
 
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data/2023/2023-05-02/readme.md

@@ -1,9 +1,3 @@
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 ### Please add alt text to your posts
 
 Please add alt text (alternative text) to all of your posted graphics