Completed tutorial on algebra

examples/product_spaces.ipynb

@@ -22,6 +22,7 @@
     "\n",
     "\n",
     "If you are interested in robotics, it is also important since:\n",
+    "\n",
     "- **Reasoning with uncertainty**: Robots often operate in environments with uncertainty. $\\sigma$ algebras provide a mathematical foundation to represent uncertain events and reason about the probability of different events happening (like sensor readings or obstacles appearing).\n",
     "- **Decision making under probability**:  Many robotic tasks involve making decisions based on probabilities. By understanding $\\sigma$-algebras, you can build algorithms that consider the chance of different outcomes and choose the action with the highest probability of success.\n",
     "- **Planning and control under uncertainty**:  Planning robot actions often requires considering various possibilities. $\\sigma$-algebras allow you to create probabilistic models of the environment, enabling robots to plan and control their movements while accounting for uncertainties.\n",