replace broken link to best practices

gf.cabal

@@ -169,6 +169,7 @@ library
     GF.Text.Lexing
     GF.Grammar.Canonical
 
+  other-modules:
     GF.Main
     GF.Compiler
     GF.Interactive

index.html

@@ -55,14 +55,14 @@
       <li><a href="gf-book">The GF Book</a></li>
       <li><a href="doc/gf-refman.html">Reference Manual</a></li>
       <li><a href="doc/gf-shell-reference.html">Shell Reference</a></li>
-      <li><a href="http://www.molto-project.eu/sites/default/files/MOLTO_D2.3.pdf">Best Practices</a> <small>[PDF]</small></li>
+      <li><a href="https://www.grammaticalframework.org/doc/MOLTO_D2.3.pdf">Best Practices</a> <small>[PDF]</small></li>
       <li><a href="https://www.mitpressjournals.org/doi/pdf/10.1162/COLI_a_00378">Scaling Up (Computational Linguistics 2020)</a></li>
       <li><a href="https://inariksit.github.io/blog/">GF blog</a></li>
     </ul>
 
     <a href="lib/doc/synopsis/index.html" class="btn btn-primary ml-3">
       <i class="fab fa-readme mr-1"></i>
-      RGL Synopsis
+      RGL API
     </a>
   </div>
 
@@ -72,8 +72,12 @@
       <li><a href="doc/gf-developers.html">Developers Guide</a></li>
       <!-- <li><a href="/~hallgren/gf-experiment/browse/">Browse Source Code</a></li> -->
       <li>PGF library API:<br>
-        <a href="http://hackage.haskell.org/package/gf/docs/PGF.html">Haskell</a> /
-        <a href="doc/runtime-api.html">C&nbsp;runtime</a>
+        <ul>
+          <li><a href="http://hackage.haskell.org/package/gf/docs/PGF.html">Haskell</a>
+          </li><li><a href="doc/runtime-api.html#python">Python</a>
+          </li><li><a href="doc/runtime-api.html">C&nbsp;runtime</a>
+          </li>
+        </ul>
       </li>
       <li><a href="http://hackage.haskell.org/package/gf/docs/GF.html">GF compiler API</a></li>
       <!-- <li><a href="src/ui/android/README">GF on Android (new)</a></li>