CompatHelper: bump compat for "Documenter" to "0.26" (#174)

* CompatHelper: bump compat for "Documenter" to "0.26"

* bump compat for "DemoCards" to "0.4"

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Johnny Chen <[email protected]>

Author: github-actions[bot]

Project.toml

@@ -36,9 +36,9 @@ AxisArrays = "0"
 ColorTypes = "0"
 Colors = "0"
 CoordinateTransformations = "0"
-DemoCards = "0.3"
+DemoCards = "0.4"
 Distances = "0"
-Documenter = "0.25"
+Documenter = "0.26"
 FileIO = "1"
 FixedPointNumbers = "0"
 ImageAxes = "0"