Add TOC to docs

.gitignore

@@ -158,3 +158,4 @@ cython_debug/
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
+_toc.yml

docs/book/build_toc.py

@@ -0,0 +1,36 @@
+import os
+import geemap
+
+input_dir = os.getcwd()
+files = geemap.find_files(input_dir, ext=".ipynb", fullpath=True)
+files = [file.replace(f"{input_dir}/docs/", "") for file in files]
+files.sort()
+
+fundamentals = []
+applications = []
+
+for file in files:
+    if file.startswith("book/Part F"):
+        fundamentals.append(file)
+    elif file.startswith("book/Part A"):
+        applications.append(file)
+
+files = fundamentals + applications
+
+sections = []
+toc = []
+
+for file in files:
+    if file.startswith("book/Part"):
+        section = file.split("/")[2]
+        if section not in sections:
+            sections.append(section)
+            toc.append(f"  - {section}:\n")
+            print(f"    - {section}:")
+        print(f"      - {file}")
+        toc.append(f"      - {file}\n")
+
+print(sections)
+
+with open("_toc.yml", "w") as f:
+    f.writelines(toc)