update the compatibility table

Author: smmoosavi

README.md

@@ -174,6 +174,7 @@ you can find more detail in [this file][css-patch]
 |     0.9.x     |        0.0.5         |
 |     1.x.x     |        0.1.0         |
 | 2.0.0 - 2.1.1 |        0.1.2         |
+|     2.1.2     |        0.1.4         |