Similar in vein to #497, just cleaning up docs

Technotes/NewInCocoa2018.md

@@ -2,41 +2,41 @@
 
 https://developer.apple.com/videos/play/wwdc2018/209/
 
-NSImage(named: string) is now allowed!
-NSMenuItemValidation is now a real protocol, other informals have been made real
-Secure coding with NSKeyedArchiver, unarchiver
+- NSImage(named: string) is now allowed!
+- NSMenuItemValidation is now a real protocol, other informals have been made real
+- Secure coding with NSKeyedArchiver, unarchiver
 
-NSColor.controlAccentColor
-.withSystemEffect - pressed, disabled, etc.
-Content Tint Color
-NSButton, NSImageView contentTintColor
+- NSColor.controlAccentColor
+- .withSystemEffect - pressed, disabled, etc.
+- Content Tint Color
+- NSButton, NSImageView contentTintColor
 
-Layer Backing
-Not one to one NSView to CALayer (unlike UIKit)
-No need to set .wantsLayer = true
-Use NSView draw method instead of layer drawing
-Fine to implement updateLayer along with draw method
-.wantsUpdateLayer is okay
-Don’t use NSView lock/unlock focus
+### Layer Backing
+- Not one to one NSView to CALayer (unlike UIKit)
+- No need to set .wantsLayer = true
+- Use NSView draw method instead of layer drawing
+- Fine to implement updateLayer along with draw method
+- .wantsUpdateLayer is okay
+- Don’t use NSView lock/unlock focus
 
-User Notifications
-NSUserNotification deprecated
+### User Notifications
+- NSUserNotification deprecated
 
-NSToolbar
-centeredItemIdentifier
-Auto layout now used when min max sizes not specified
+### NSToolbar
+- centeredItemIdentifier
+- Auto layout now used when min max sizes not specified
 
-NSGridView
-Grid views authored in IB work in 10.13
+### NSGridView
+- Grid views authored in IB work in 10.13
 
-NSTextView
-fieldEditor
-scrollableTextView
-etc.
-performValidatedReplacement - calls delegates properly, fills in atts from typing atts
-May need to call setSelectedRange first to get proper atts
-validRequestor - Services API
+### NSTextView
+- fieldEditor
+- scrollableTextView
+- etc.
+- performValidatedReplacement - calls delegates properly, fills in atts from typing atts
+- May need to call setSelectedRange first to get proper atts
+- validRequestor - Services API
 
-Custom Quick Actions
+### Custom Quick Actions