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docs/contribution-guidelines.md

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+# Contribution Guidelines
+
+## Writing Code
+
+*   Include documentation reference(s) at the top of each file:
+
+    ```ts
+    // http://officeopenxml.com/WPdocument.php
+    ```
+
+*   Follow Prettier standards, and consider using the [Prettier VSCode](https://marketplace.visualstudio.com/items?itemName=esbenp.prettier-vscode) plugin.
+
+*   Follow the `TSLint` rules
+
+## Testing
+
+Please write a test of every file you make and suffix it with `.spec.ts`.
+
+Here is a template of a test:
+
+```ts
+import { assert } from "chai";
+
+describe("ClassName", () => {
+    beforeEach(() => {
+        // TODO
+    });
+
+    describe("#methodName()", () => {
+        it("should ", () => {
+            // TODO
+        });
+    });
+});
+```