Updates to make Chapter 15 in Biodigs book work oob

[almahmoud]

Planning on using the BioDigs Chapter 15 (https://hutchdatascience.org/GDSCN_BioDIGS_Book/exploring-soil-testing-data-with-r.html) as a quick introduction to R for students in the YES4CURE program as discussed with Natalie and Ava.

1. When running through it, there was a minor bug in getting the data, due to the fact that gsheet2tbl seems to replace spaces and punctuation with ., so I updated the code to expect that sometimes it's replacing with dots, sometimes it's keeping spaces, not entirely sure why. Turning PR into draft since this isn't consistent like I originally assumed.
2. The material uses tidyverse in Part 2 but didn't have it as an explicit dependency, so I added that to the DESCRIPTION file.

We can run from the fork for the students, so no urgency in looking at this, and no need to merge if seems inappropriate, but I thought it would be beneficial to PR upstream in case helpful!

I didn't make any version bump as I wasn't sure about your preferred versioning scheme.

These were tested with R 4.4.1, sessionInfo below for list of package versions

other attached packages:
 [1] lubridate_1.9.3        forcats_1.0.0          stringr_1.5.1          purrr_1.0.2           
 [5] readr_2.1.5            tibble_3.2.1           ggplot2_3.5.1          tidyverse_2.0.0       
 [9] dplyr_1.1.4            tidyr_1.3.1            gsheet_0.4.5           BioDIGSData_0.0.0.9000

loaded via a namespace (and not attached):
 [1] utf8_1.2.4        generics_0.1.3    stringi_1.8.4     hms_1.1.3         digest_0.6.36    
 [6] magrittr_2.0.3    grid_4.4.1        timechange_0.3.0  pkgload_1.3.4     fastmap_1.2.0    
[11] processx_3.8.4    pkgbuild_1.4.4    sessioninfo_1.2.2 urlchecker_1.0.1  ps_1.7.7         
[16] promises_1.3.0    httr_1.4.7        fansi_1.0.6       scales_1.3.0      cli_3.6.3        
[21] shiny_1.8.1.1     rlang_1.1.4       munsell_0.5.1     ellipsis_0.3.2    withr_3.0.0      
[26] remotes_2.5.0     cachem_1.1.0      devtools_2.4.5    tools_4.4.1       tzdb_0.4.0       
[31] memoise_2.0.1     colorspace_2.1-0  httpuv_1.6.15     curl_5.2.1        vctrs_0.6.5      
[36] R6_2.5.1          mime_0.12         lifecycle_1.0.4   fs_1.6.4          htmlwidgets_1.6.4
[41] usethis_2.2.3     miniUI_0.1.1.1    pkgconfig_2.0.3   desc_1.4.3        callr_3.7.6      
[46] gtable_0.3.5      pillar_1.9.0      later_1.3.2       glue_1.7.0        profvis_0.3.8    
[51] Rcpp_1.0.12       tidyselect_1.2.1  rstudioapi_0.16.0 xtable_1.8-4      htmltools_0.5.8.1
[56] compiler_4.4.1