Update keyboard-shortcuts.mdAdd missing source code editing shortcut

Adds Ctrl+E / Command+E shortcut to the Source Code Editing section as reported in #41394.

Author: duvvuvenkataramana

content/get-started/accessibility/keyboard-shortcuts.md

@@ -65,6 +65,7 @@ The following sections list some of the available keyboard shortcuts, organized
 |<kbd>Command</kbd>+<kbd>Shift</kbd>+<kbd>8</kbd> (Mac) or </br> <kbd>Ctrl</kbd>+<kbd>Shift</kbd>+<kbd>8</kbd> (Windows/Linux) | Inserts Markdown formatting for an unordered list |
 |<kbd>Command</kbd>+<kbd>Shift</kbd>+<kbd>.</kbd> (Mac) or </br> <kbd>Ctrl</kbd>+<kbd>Shift</kbd>+<kbd>.</kbd> (Windows/Linux) | Inserts Markdown formatting for a quote |
 |<kbd>E</kbd> | Open source code file in the **Edit file** tab |
+|<kbd>Command</kbd>+<kbd>E</kbd> (Mac) or <br> <kbd>Ctrl</kbd>+<kbd>E</kbd> (Windows/Linux) | Use the selected text as the search query |
 |<kbd>Command</kbd>+<kbd>F</kbd> (Mac) or </br> <kbd>Ctrl</kbd>+<kbd>F</kbd> (Windows/Linux) | Start searching in file editor |
 |<kbd>Command</kbd>+<kbd>G</kbd> (Mac) or </br> <kbd>Ctrl</kbd>+<kbd>G</kbd> (Windows/Linux) | Find next |
 |<kbd>Command</kbd>+<kbd>Shift</kbd>+<kbd>G</kbd> (Mac) or </br> <kbd>Ctrl</kbd>+<kbd>Shift</kbd>+<kbd>G</kbd> (Windows/Linux) | Find previous |