Update README.md

Added bea-infrastructure-investment.Rmd to Graph Gallery

README.md

@@ -61,6 +61,7 @@ Full article content via [RSS is now available](https://github.com/rnnh/TidyTues
 | [star-trek-voice-commands.Rmd](_posts/2021-08-18-star-trek-voice-commands/star-trek-voice-commands.Rmd) | ![star trek voice commands plot 3](_posts/2021-08-18-star-trek-voice-commands/star-trek-voice-commands_files/figure-html5/fig3-1.png) |
 | [star-trek-voice-commands.Rmd](_posts/2021-08-18-star-trek-voice-commands/star-trek-voice-commands.Rmd) | ![star trek voice commands plot 4](_posts/2021-08-18-star-trek-voice-commands/star-trek-voice-commands_files/figure-html5/fig4-1.png) |
 | [star-trek-voice-commands.Rmd](_posts/2021-08-18-star-trek-voice-commands/star-trek-voice-commands.Rmd) | ![star trek voice commands plot 5](_posts/2021-08-18-star-trek-voice-commands/star-trek-voice-commands_files/figure-html5/fig5-1.png) |
+| [bea-infrastructure-investment.Rmd](_posts/2021-08-15-bea-infrastructure-investment/bea-infrastructure-investment.Rmd) | ![bea infrastructure investment plot](_posts/2021-08-15-bea-infrastructure-investment/bea-infrastructure-investment_files/figure-html5/figure_1-1.png) |
 | [ceo-departures.Rmd](https://github.com/rnnh/TidyTuesday/blob/main/_posts/2021-04-27-ceo-departures/ceo-departures.Rmd) | ![ceo departures plot 1](_posts/2021-04-27-ceo-departures/ceo-departures_files/figure-html5/fig1-1.png) |
 | [ceo-departures.Rmd](https://github.com/rnnh/TidyTuesday/blob/main/_posts/2021-04-27-ceo-departures/ceo-departures.Rmd) | ![ceo departures plot 2](_posts/2021-04-27-ceo-departures/ceo-departures_files/figure-html5/fig2-1.png) |
 | [netflix-titles.Rmd](_posts/2021-04-21-netflix-titles/netflix-titles.Rmd) | ![netflix titles plot 1](_posts/2021-04-21-netflix-titles/netflix-titles_files/figure-html5/figure1-1.png) |