Update CITATION.cff

CITATION.cff

@@ -8,7 +8,7 @@ message: 'To cite package "soilDB" in publications use:'
 type: software
 license: GPL-3.0-or-later
 title: 'soilDB: Soil Database Interface'
-version: 2.8.3
+version: 2.8.4
 abstract: A collection of functions for reading soil data from U.S. Department of
   Agriculture Natural Resources Conservation Service (USDA-NRCS) and National Cooperative
   Soil Survey (NCSS) databases.
@@ -37,12 +37,12 @@ preferred-citation:
   - family-names: Brown
     given-names: Andrew
     email: [email protected]
-  notes: R package version 2.8.2
+  notes: R package version 2.8.3
   url: https://CRAN.R-project.org/package=soilDB
   year: '2024'
 repository: https://CRAN.R-project.org/package=soilDB
 repository-code: https://github.com/ncss-tech/soilDB
-url: https://ncss-tech.github.io/soilDB/
+url: https://github.com/ncss-tech/soilDB/
 contact:
 - family-names: Brown
   given-names: Andrew
@@ -391,6 +391,8 @@ references:
     email: [email protected]
   year: '2024'
 identifiers:
+- type: url
+  value: https://ncss-tech.github.io/soilDB/
 - type: url
   value: https://ncss-tech.github.io/AQP/