adds two tower recommendation system notebook example (#42)

Author: justin-cechmanek

python-recipes/recommendation-systems/01_collaborative_filtering.ipynb

@@ -6,7 +6,7 @@
    "source": [
     "![Redis](https://redis.io/wp-content/uploads/2024/04/Logotype.svg?auto=webp&quality=85,75&width=120)\n",
     "\n",
-    "# Collaborative Filtering in RedisVL\n",
+    "# Recommendation Systems: Collaborative Filtering in RedisVL\n",
     "\n",
     "<a href=\"https://colab.research.google.com/github/redis-developer/redis-ai-resources/blob/main/python-recipes/recommendation-systems/01_collaborative_filtering.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
    ]