CompatHelper: add new compat entry for FiniteDifferences at version 0.12 for package docs, (keep existing compat) (#323)

Co-authored-by: CompatHelper Julia <[email protected]>
Co-authored-by: Ronny Bergmann <[email protected]>

Author: 3 people

docs/Project.toml

@@ -27,6 +27,7 @@ CondaPkg = "0.2"
 DataFrames = "1"
 Documenter = "1"
 DocumenterCitations = "1"
+FiniteDifferences = "0.12"
 JLD2 = "0.4"
 LineSearches = "7"
 Literate = "2"