Add Docs folder, patterns.md

Docs/patterns.md

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+# Code Patterns
+
+This document holds some of the code patterns I've arrived at when writing code in the project.
+
+## Implementing Components
+
+### `OnStart()`
+
+> Called when the component is enabled for the first time
+
+Override this if your component is only going to be enabled once or if you do not have resources that need to be added
+or
+removed when its enabled / disabled.
+
+If you do need to do cleanup and setup on enable / disable, override `OnEnabled` and `OnDisabled` instead.
+
+## Instantiating Components
+
+Components don't have constructors, so you need another way of providing dependencies to them when they are instantiated
+elsewhere. There's probably a better way to do this, but for now we just configure them immediately after calling
+`GameObject.AddComponent<T>()`:
+
+```csharp
+var client = gameObject.AddComponent<Client>();
+client.Connection = channel;
+```
+
+Shortly after this execution scope (I'm not sure exactly when) its `OnStart()` and `OnEnabled()` methods will
+be called, which contain the initialization logic.
+
+As long as the component is configured correctly after it's been added, it should work correctly, but that raises the
+question: How do we manage the validation of properties in the Component implementation? I haven't found a satisfying
+answer
+yet.
+