suggest add initWithFrame to MarkdownTextView

- (id)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
[[NSNotificationCenter defaultCenter]
addObserver:self selector:@selector(didTextChangeText:) name:UITextViewTextDidChangeNotification object:nil];
[self updateSyntax];
[KOKeyboardRow applyToTextView:self];
}
return self;
}

Start at MarkdownTextView's initialization code and inspect the UITextView lifecycle around initWithFrame:(CGRect)frame. Confirm how text-change observation, syntax updates, and KOKeyboardRow setup are currently reached, then verify the requested initializer is exercised without breaking existing construction paths.

Written by the indexing model from the issue text.