Merge pull request #516 from vincode-io/accessibility-technote

added Accessibility technote

Technotes/Accessibility.md

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+# Accessibility
+
+Millions of Mac users have some disability or special needs.  They use screen readers and special
+hardware to open up a world that they would otherwise be cut off from.  With a small amount of 
+developer work, we can help these users live better lives.
+
+Because NetNewsWire utilizes standard AppKit controls and views, accessibility is already built in.
+However this is only a starting point.  Any customized controls and views will have accessibility
+work and the application as a whole has to be tested to make sure users can operate if effeciently.
+
+This document lays the groundwork to ensure that NetNewsWire has first class accessibility features.
+
+#### Application Design
+
+- Support full keyboard navigation
+- Don’t override built-in keyboard shortcuts (by default)
+- Provide alternatives for drag-and-drop operations
+
+#### Audit 
+
+The Accessibility Inspector included with the developer tools includes an automated audit tool.  This
+tool didn't find an issues when initially run against NetNewsWire.  Additional auditing will be
+performed using the Inspector functionality within the Accessibility Inspector tool.
+
+#### Testing
+
+Manual testing using VoiceOver and Dictation will be done to provide more realworld-like feedback.
+
+#### Reporting Accessibility Issues
+
+The results of the accessiblity audit should get filed as separate bugs on Github.
+
+#### Success Criteria
+
+- Should be fully navigatable using the keyboard
+- Should be fully navigatable using Dictation
+- SHould be fully discoverable using VoiceOver