Change default values to definitely non-crashing

Author: jank324

challenge_A_rl_training.ipynb

@@ -54,7 +54,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": null,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -141,8 +141,8 @@
     "    \"learning_rate\": 0.0003,\n",
     "    \"lr_schedule\": \"constant\",  # Can be \"constant\" or \"linear\"\n",
     "    \"gamma\": 0.99,\n",
-    "    \"n_envs\": 40,\n",
-    "    \"n_steps\": 64,\n",
+    "    \"n_envs\": 10,\n",
+    "    \"n_steps\": 256,\n",
     "    \"ent_coef\": 0.0,\n",
     "    \"n_epochs\": 10,\n",
     "    \"gae_lambda\": 0.95,\n",