Also canonicalise anchor parts of articles

Replace spaces in anchors with underscores as spaces are not correct
there

Related Task: [https://fs.golderweb.de/index.php?do=details&task_id=114 FS#114]

lib/redfam.py

@@ -288,6 +288,11 @@ class RedFamParser( RedFam ):
             article = article.split("#", 1)
             # Replace underscores in title with spaces
             article[0] = article[0].replace("_", " ")
+
+            if len(article) > 1:
+                # other way round, replace spaces with underscores in anchors
+                article[1] = article[1].replace(" ", "_")
+
             # Rejoin title and anchor
             article = "#".join(article)