Update options docs for TryExamples directive

Author: agriyakhetarpal

docs/directives/try_examples.md

@@ -118,13 +118,14 @@ positioning of the button. The css for the example above is
 
 The `try_examples` directive has these options:
 
-* `:height:` To set a specific value for the height of the [iframe](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe) containing the embeddednotebook.
+* `:height:` To set a specific value for the height of the [iframe](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe) containing the embedded notebook.
 * `:button_text` To customize the text of the button that replaces the rendered examples with an embedded notebook. The default value is `"Try it with JupyterLite!"`, or the value of the global configuration variable `try_examples_global_button_text` if it is set in `conf.py`.
 * `:theme:` This works the same as for the other JupyterLite-Sphinx directives.
 * `:example_class:` An html class to attach to the outer container for the rendered
 examples content and embedded notebook. This can be used in a custom css file to allow
 for more precise customization, eg. different button styles across different examples.
-* `:warning_text:` Prepend a markdown cell to the notebook containing this text, styled to make it clear this is intended as a warning.
+The default value is the value of the global configuration variable `try_examples_global_theme`, if it is set in `conf.py`.
+* `:warning_text:` Prepend a markdown cell to the notebook containing this text, styled to make it clear this is intended as a warning. The default value is the value of the global configuration variable `try_examples_global_warning_text` if it is set in `conf.py`, otherwise no warning text is added.
 
 Here's an example with some options set