update sqr section
fix typos
updated defer docs to reflect recent exit handling change
Updated shed Scripting Features (markdown)
added documentation for `SHED_EXEC_WRAPPERS`
Updated Home (markdown)
Created Autoloading (markdown)
Created Syntax Highlighting (markdown)
Created Prompt (markdown)
Updated IPC Socket (markdown)
Updated Ex Mode (markdown)
Updated Command History (markdown)
Created IPC Socket (markdown)
Created shed Scripting Features (markdown)
Updated Line Editor (markdown)
Created Line Editor (markdown)
Created Ex Mode (markdown)
Created Interactive Documentation (markdown)