Update README.md

Author: Kyubyong

README.md

@@ -7,11 +7,11 @@ This is designed to help those who want to familiarize themselves with TensorFlo
 The basic outline will be as follows, though this is not 100% fixed.
 
 * Constants, Sequences, and Random Values (DONE)
-* Variables (WIP)
+* Variables (Soon)
 * Tensor Transformations (DONE)
 * Math Part 1 (DONE)
 * Math Part 2 (DONE)
-* Math Part 3 (Soon)
+* Math Part 3 (DONE)
 * Strings (WIP)
 * Control Flow (DONE)
 * Images (WIP)