ENH: update show code cell prompt to be more concise (#362)

* ENH: update show code cell prompt to be more concise

* move to correct location in config

Author: mmcky

lectures/_config.yml

@@ -42,6 +42,8 @@ sphinx:
     # myst-nb config
     nb_render_image_options:
       width: 80%
+    nb_code_prompt_show: "Show {type}"
+    # -------------
     html_favicon: _static/lectures-favicon.ico
     html_theme: quantecon_book_theme
     html_static_path: ['_static']