Move internal docstrings to a hidden page (#143)

Author: tkf

docs/make.jl

@@ -15,6 +15,7 @@ makedocs(
             "Introduction" => "intro.md",
             "Docstrings" => "index.md",
             "Custom Macros" => "examples/custom_macros.md",
+             hide("internals.md"),
             ],
         strict = true,  # to exit with non-zero code on error
         )

docs/src/index.md

@@ -2,4 +2,5 @@
 
 ```@autodocs
 Modules = [Setfield]
+Private = false
 ```

docs/src/internals.md

@@ -0,0 +1,6 @@
+# Internals
+
+```@autodocs
+Modules = [Setfield]
+Public = false
+```