Add readme.

Author: diveonebot

CHEAT_SHEET.md

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+# White Boarding Advice
+
+Resources:
+* [Algorithm Deck](https://drive.google.com/open?id=1raZx8K8cWmQkwmjxJ3qZ-GG6zEAawtsmtGgxnd-DXfU)
+
+*Summary*
+
+During a white board session, go step by step, asking questions throughout:
+
+1. Analyze and question
+    * What does the algorithm do?
+    * What are the inputs and outputs (data types)?
+    * Any restraints or rules?
+2. Example/test of how it will be used
+3. Visualize and discuss (draw it out if necessary)
+4. Pseudocode the approach
+5. Code