Lower DocStringExtensions compat (#31)

Author: gdalle

Project.toml

@@ -1,7 +1,7 @@
 name = "SparseMatrixColorings"
 uuid = "0a514795-09f3-496d-8182-132a7b665d35"
 authors = ["Guillaume Dalle <22795598+gdalle@users.noreply.github.com>"]
-version = "0.3.5"
+version = "0.3.6"
 
 [deps]
 ADTypes = "47edcb42-4c32-4615-8424-f2b9edc5f35b"
@@ -14,7 +14,7 @@ SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 [compat]
 ADTypes = "1.2.1"
 Compat = "3.46,4.2"
-DocStringExtensions = "0.9"
+DocStringExtensions = "0.8,0.9"
 LinearAlgebra = "<0.0.1, 1"
 Random = "<0.0.1, 1"
 SparseArrays = "<0.0.1, 1"