Add README

as0/README.md

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+1. Include a 2-3 sentence explanation of how to make a window resizable (5
+   points) and a 2-3 sentence explanation of how to keep text centered in a
+   resizing window (5 points). 
+
+   The window can be made resizable by using the FLAG_WINDOW_RESIZABLE flag when
+   creating the window using the SetState method. This flag allows the user to
+   adjust window size.
+
+   To keep text centered in a resizing window, on every draw call, we can
+   calculate the center position based on the screen width and height using
+   GetWidth() and GetHeight() methods. Then, we have to calculate the text
+   width using MeasureText() and setting the origin position of the text to be
+   half of the text width and height. Using the DrawTextPro method allows us to
+   use this origin position as an anchor point to keep the text centered, which
+   is also useful for other transformations like rotation and scaling.
+
+2. Include a 2-3 sentence explanation of what "cmake .." does. What is the
+   importance of the ".."? (5 points.) Describe how to fetch your git
+   submodules (5 points) with commands that can be copy and pasted into a Linux
+   terminal (5 points).
+
+   Running `cmake ..` tells CMake to generate the build files for the project
+   by looking for CMakeLists.txt in the parent directory. Because building is
+   done in a separate build directory within the project, it is necessary to
+   use the ".." to point CMake to the root directory of the project, where the
+   CMakeLists.txt file is located.
+
+   `git clone` has an option to initialize and fetch submodules while cloning.
+   However, if the repository has already been cloned, the `git submodule
+   update --init --recursive` command can be used to fetch and initialize all
+   submodules defined in the repository.
+
+   ```shell
+   git submodule update --init --recursive
+   ```
+
+3. Describe how to compile your code (10 points) with copy and pasteable
+   commands \[assume that we have cloned your repository and are in your as0
+   folder\] (10 points).
+
+   Make a build directory and enter it. Run cmake to generate the build files.
+   Then, compile the code using make. The executable will be created in the build
+   directory with the name "as0".
+
+   ```shell
+   mkdir -p build
+   cd build
+   cmake ..
+   make
+   ```
+
+4. Describe how to run you’re code (10 points) and enumerate its controls \[I
+   predict "not applicable" will be the most common set of controls for this
+   assignment.\] (10 points).
+
+   After compiling the code, the executable can be run from the build
+   directory. The executable is named "as0" and can be started with `./as0`
+
+   There are no specific controls other than resizing the window, which changes
+   how the text is displayed by remaining centered.
+
+5. If you have any extra credit make sure to mention it so we don't miss it.
+
+   The text is animated as it continuously rotates 22.5 degrees per second.