Properly link documentation URLs

pydoc-markdown.yml

@@ -1,3 +1,11 @@
+#@ def base_url():
+#@    if env.READTHEDOCS:
+#@      return "https://pysr.readthedocs.io/en/" + env.READTHEDOCS_VERSION + "/"
+#@    else:
+#@      return None
+#@ end
+
+
 loaders:
   - type: python
 
@@ -7,7 +15,14 @@ processors:
   - type: crossref
 renderer:
   type: hugo
+
+  markdown:
+    source_linker:
+      type: github
+      repo: MilesCranmer/PySR
+
   config:
+    baseURL: #@ base_url()
     title: PySR
     theme: {clone_url: "https://github.com/alex-shpak/hugo-book.git"}
   # The "book" theme only renders pages in "content/docs" into the nav.