Update docs/src/internals/varinfo.md

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: torfjelde

docs/src/internals/varinfo.md

@@ -79,7 +79,9 @@ For example, with the model above we have
 
 ```@example varinfo-design
 # Type-unstable `VarInfo`
-varinfo_untyped = DynamicPPL.untyped_varinfo(demo(), SamplingContext(), DynamicPPL.Metadata())
+varinfo_untyped = DynamicPPL.untyped_varinfo(
+    demo(), SamplingContext(), DynamicPPL.Metadata()
+)
 typeof(varinfo_untyped.metadata)
 ```