adding week1 and 2 outline

week2/README.md

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+## Week 2: Coding Intro, Projectiles and Collisions
+
+### Description: 
+Get familiar with GDScript, the coding language for Godot, by a series of fun exercises that show how to create various game mechanics by the use of code.
+
+Learn the major principles of coding, as well as those specific to game development in Godot.
+
+### Code Concepts:
+* Data types and collections
+* Operators and iteration
+* Conditionals and logic
+* Syntax and scope
+* Custom signals
+* Exports and decorators
+
+Learn to apply physics forces vs scripted movements
+
+Collision detection and reaction
+
+### Development Exercise 1 - Cannon
+
+Make a particle canon for you player using physics forces
+
+### Exercise 2 - Jump Control
+
+Enhance the jump of your player, including ground detection and “double jump” control