updated docs

CITATION.cff

@@ -1002,6 +1002,34 @@ references:
     email: russell-lenth@uiowa.edu
   year: '2025'
   doi: 10.32614/CRAN.package.emmeans
+- type: software
+  title: readxl
+  abstract: 'readxl: Read Excel Files'
+  notes: Imports
+  url: https://readxl.tidyverse.org
+  repository: https://CRAN.R-project.org/package=readxl
+  authors:
+  - family-names: Wickham
+    given-names: Hadley
+    email: hadley@posit.co
+    orcid: https://orcid.org/0000-0003-4757-117X
+  - family-names: Bryan
+    given-names: Jennifer
+    email: jenny@posit.co
+    orcid: https://orcid.org/0000-0002-6983-2759
+  year: '2025'
+  doi: 10.32614/CRAN.package.readxl
+- type: software
+  title: NHANES
+  abstract: 'NHANES: Data from the US National Health and Nutrition Examination Study'
+  notes: Imports
+  repository: https://CRAN.R-project.org/package=NHANES
+  authors:
+  - family-names: Pruim
+    given-names: Randall
+    email: rpruim@calvin.edu
+  year: '2025'
+  doi: 10.32614/CRAN.package.NHANES
 - type: software
   title: styler
   abstract: 'styler: Non-Invasive Pretty Printing of R Code'