Minor changes and improvements.

Version 2.0 Notes can now be formatted, and photos can go inside them. FORMATTING Type # for a title, - for a bullet, 1. for a numbered list, - [ ] for a checkbox, or [text](https://...) for a link. The markers vanish as you type and only the result is shown. Tick checkboxes with one tap. PHOTOS Insert a photo from your library anywhere in a note. Tap to open it full screen and pinch to zoom. COLORS Fifteen row colors instead of seven, each with a soft gradient and an accent stripe. One is a rainbow. Press and hold a row to pick a color directly instead of swiping through them. EDITING Undo and redo, by button or Command-Z. Return continues lists. Arrow keys move between lines with a hardware keyboard. EXPORT Save one note or all of them as .md files, with photos collected into an images folder. IPAD The list and the note are shown side by side. ACCESSIBILITY VoiceOver announces headings, and the layout follows your Dynamic Type setting. ALSO FIXED • Search now looks at note titles as well as their contents • Reordering no longer moves the wrong note while a search is active • The edit date is updated when a note actually changes • Titles in the list no longer show formatting characters • The app no longer fails to start if its database cannot be opened; a recovery screen offers to export your data first YOUR EXISTING NOTES Nothing is converted and nothing is moved. Notes written before this update keep behaving exactly as they did. To use the new formatting in one of them, turn it on from the menu in that note. You can turn it back off at any time.