Add READMEs for u005B-wider and u005D-wider

Author: vl4dimir

glyphs/u005B-wider/README.md

@@ -0,0 +1,6 @@
+<img height="60" alt="left-regular" src="https://user-images.githubusercontent.com/206409/34211653-1238cd6a-e59a-11e7-977e-bb9e2d292ee0.png">
+<img height="60" alt="left-bold" src="https://user-images.githubusercontent.com/206409/34211661-183cf358-e59a-11e7-8e80-035c10906403.png">
+<img height="60" alt="left-italic" src="https://user-images.githubusercontent.com/206409/34211670-1e144b6e-e59a-11e7-9c99-f523059e5c19.png">
+<img height="60" alt="left-bolditalic" src="https://user-images.githubusercontent.com/206409/34211673-21220c56-e59a-11e7-9f87-5e4fca1a6fac.png">
+
+Check out [BRUTALISM Hack](https://github.com/BRUTALISM/Hack) to see the glyphs in action.

glyphs/u005D-wider/README.md

@@ -0,0 +1,6 @@
+<img height="60" alt="right-regular" src="https://user-images.githubusercontent.com/206409/34211786-73ec6bc0-e59a-11e7-9f17-0c1b1f4df253.png">
+<img height="60" alt="right-bold" src="https://user-images.githubusercontent.com/206409/34211790-768e434e-e59a-11e7-937d-5250bb706280.png">
+<img height="60" alt="right-italic" src="https://user-images.githubusercontent.com/206409/34211794-7942e16c-e59a-11e7-8d43-293115127b63.png">
+<img height="60" alt="right-bolditalic" src="https://user-images.githubusercontent.com/206409/34211796-7b517b9e-e59a-11e7-99bb-12587de5d47d.png">
+
+Check out [BRUTALISM Hack](https://github.com/BRUTALISM/Hack) to see the glyphs in action.