Fix/easy disable sm 2 in simulator (#603)

Author: L-M-Sherlock

fsrs4anki_simulator.ipynb

@@ -7,7 +7,7 @@
         "id": "jmXx-hS9ZMVj"
       },
       "source": [
-        "# FSRS4Anki v4.11.0 Simulator"
+        "# FSRS4Anki v4.12.2 Simulator"
       ]
     },
     {
@@ -17,7 +17,7 @@
         "id": "lurCmW0Jqz3s"
       },
       "source": [
-        "[![open in colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/open-spaced-repetition/fsrs4anki/blob/v4.11.0/fsrs4anki_simulator.ipynb)\n",
+        "[![open in colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/open-spaced-repetition/fsrs4anki/blob/v4.12.2/fsrs4anki_simulator.ipynb)\n",
         "\n",
         "↑ Click the above button to open the simulator on Google Colab.\n",
         "\n",
@@ -66,7 +66,9 @@
         "\n",
         "# Red: 1, Orange: 2, Green: 3, Blue: 4, Pink: 5, Turquoise: 6, Purple: 7\n",
         "# Set it to [1, 2] if you don't want the optimizer to use the review logs from cards with red or orange flag.\n",
-        "filter_out_flags = []"
+        "filter_out_flags = []\n",
+        "\n",
+        "schedulers = [\"anki\", \"fsrs\"] # You can disable anki by removing it from this list"
       ]
     },
     {
@@ -91,7 +93,7 @@
         }
       ],
       "source": [
-        "%pip install -q fsrs_optimizer==4.20.4\n",
+        "%pip install -q fsrs_optimizer==4.22.0\n",
         "import pandas as pd\n",
         "import numpy as np\n",
         "import random\n",
@@ -420,7 +422,7 @@
         "    return None\n",
         "\n",
         "\n",
-        "for scheduler_name in (\"anki\", \"fsrs\"):\n",
+        "for scheduler_name in schedulers:\n",
         "    new_card_per_day = np.array([0] * learn_days)\n",
         "    new_card_per_day_average_per_period = np.array([0.0] * learn_days)\n",
         "    review_card_per_day = np.array([0.0] * learn_days)\n",