Explain where resolution comes from

2-ObjectProgramming/6b-TP.ipynb

@@ -27,7 +27,7 @@
     "\n",
     "This class:\n",
     "\n",
-    "* Should get a constructor which sets the resolution.\n",
+    "* Should get a constructor which sets the resolution (known as `maximum_error_index` in the previous exercice).\n",
     "* Includes a protected method named `PrintLine()` that will replace the `print_line()` we introduced in previous exercice.\n",
     "\n",
     "The constructors of derived classes will of course have to be modified accordingly: so far we relied on default ones."
@@ -311,14 +311,14 @@
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    "language": "C++17",
-   "name": "xeus-cling-cpp17"
+   "name": "xcpp17"
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    "file_extension": ".cpp",
    "mimetype": "text/x-c++src",
    "name": "c++",
-   "version": "-std=c++17"
+   "version": "17"
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   "latex_envs": {
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