Add ToC generate in examples

apps/examples.py

@@ -210,3 +210,5 @@ def app(state=None):
     col3.write("**Actual Question**: Was guckt der Hund denn so?")
     col3.write("**English Translation**: What is the dog looking at?")
     col3.write("**Predicted Answer**: Frisbeescheibe (frisbee)❎")
+
+    toc.generate()