Merge pull request #2555 from sir4ur0n/sir4ur0n/fixDocumentationRelativeLinkHeader

doc: Enable relative links with anchors

Author: michaelpj

docs/conf.py

@@ -83,3 +83,7 @@
 # relative to this directory. They are copied after the builtin static files,
 # so a file named "default.css" will overwrite the builtin "default.css".
 html_static_path = ['_static']
+
+# Enable linking to an anchor of a relative page
+# See https://github.com/executablebooks/MyST-Parser/issues/443
+myst_heading_anchors = 2