Rename CustomTeX example scenes to be more specific.

example_scenes/customtex.py

@@ -1,23 +1,23 @@
 from manim import *
 
-# Test cases:
-# 1. manim customtex.py ExampleFileScene -pl
-#       --> should fail, because \vv is not defined
-#
-# 2. manim customtex.py ExampleFileScene --tex_template custom_template.tex -pl
-#       --> should succeed as custom template includes package esvect (which defines \vv)
-#
-# 3. manim customtex.py ExampleClassScene -pl
-#       --> should succeed as the package esvect is included in template object
-
-class ExampleFileScene(Scene):
+class TexTemplateFromCLI(Scene):
+    """This scene uses a custom TexTemplate file.
+    The path of the TexTemplate _must_ be passed with the command line
+    argument `--tex_template <path to template>`.
+    For this scene, you can use the custom_template.tex file next to it.
+    This scene will fail to render if a tex_template.tex that doesn't
+    import esvect is passed, and will throw a LaTeX error in that case.
+    """
     def construct(self):
         text = TexMobject(r"\vv{vb}")
         #text=TextMobject(r"$\vv{vb}$")
         self.play(Write(text))
 
 
-class ExampleClassScene(Scene):
+class InCodeTexTemplate(Scene):
+    """This example scene demonstrates how to modify the tex template
+    for a particular scene from the code for the scene itself.
+    """
     def construct(self):
         tpl = TexTemplate()
         tpl.append_package(["esvect", ["f"]])