Swap first example to Apollo 11 + JFK Moon speech (more iconic entities)

app.py

@@ -1676,7 +1676,7 @@ EXAMPLES = [
     {
         "category": "Multi-hop facts",
         "icon": "🎯",
-        "text": "Which actor played the lead in the 1994 film directed by Robert Zemeckis, and which novel was that film adapted from?",
+        "text": "Who was the first person to walk on the Moon, and which U.S. President set that goal in his famous 1962 “Moon speech” at Rice University?",
     },
     {
         "category": "Time-varying + multi-hop",