change make file of docs to fix issue with /stable

Author: laurentheirendt

docs/make.jl

@@ -3,6 +3,8 @@ using Documenter, DistributedData
 makedocs(modules = [DistributedData],
     clean = false,
     format = Documenter.HTML(prettyurls = !("local" in ARGS)),
+             canonical = "https://lcsb-biocore.github.io/DistributedData.jl/stable/",
+             assets = ["assets/logo.ico"]),
     sitename = "DistributedData.jl",
     authors = "The developers of DistributedData.jl",
     linkcheck = !("skiplinks" in ARGS),
@@ -18,5 +20,5 @@ deploydocs(
     target = "build",
     branch = "gh-pages",
     devbranch = "develop",
-    versions = "stable" => "v^",
+    push_preview = true
 )