add guide on brackets

Author: afeld

.github/workflows/notebooks.yml

@@ -19,12 +19,14 @@ jobs:
           - lecture_1_exercise_solution.ipynb
           - lecture_2.ipynb
           - lecture_2_exercise.ipynb
+          - lecture_2_exercise_solution.ipynb
           - lecture_3.ipynb
           - lecture_3_exercise_solution.ipynb
           - lecture_4.ipynb
           - lecture_5.ipynb
           - lecture_5_exercise_solution.ipynb
           - lecture_6.ipynb
+          - brackets.ipynb
           - curve.ipynb
           - extras/pandas_crash_course.ipynb
     # https://github.com/mamba-org/setup-micromamba?tab=readme-ov-file#about-login-shells

_toc.yml

@@ -12,6 +12,9 @@ chapters:
       - file: curve
       {%- endif %}
   - file: resources
+    sections:
+      - file: brackets
+        title: Brackets
   - url: "{{lms_url}}"
     title: "{{lms_name}}"
   - url: "{{discussions_url}}"