add(ExampleValue, img): add test cases for theme defined status, plus a screen shot.

Author: Leonezz

ExampleVault/test theme-defined markers.md

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+
+- [ ] Unchecked
+- [x] Checked
+- [>] Rescheduled
+- [<] Scheduled
+- [!] Important
+- [-] Cancelled
+- [/] In  Progress
+- [?] Question
+- [ ] Star
+- [x] Note
+- [l] Location
+- [i] Information
+- [I] Idea
+- [S] Amount
+- [p] Pro
+- [c] Con
+- [b] Bookmark
+- ["] Quote
+- [0] Speech bubble 0
+- [1] Speech bubble 1
+- [2] Speech bubble 2
+- [3] Speech bubble 3
+- [4] Speech bubble 4
+- [5] Speech bubble 5
+- [6] Speech bubble 6
+- [7] Speech bubble 7
+- [8] Speech bubble 8
+- [9] Speech bubble 9