Change docx folder to more appropriate "file" folder

src/file/paragraph/run/strike.spec.ts

@@ -0,0 +1,34 @@
+import { assert } from "chai";
+
+import { Utility } from "../../../tests/utility";
+import { DoubleStrike, Strike } from "./formatting";
+
+describe("Strike", () => {
+    let strike: Strike;
+
+    beforeEach(() => {
+        strike = new Strike();
+    });
+
+    describe("#constructor()", () => {
+        it("should create a Strike with correct root key", () => {
+            const newJson = Utility.jsonify(strike);
+            assert.equal(newJson.rootKey, "w:strike");
+        });
+    });
+});
+
+describe("DoubleStrike", () => {
+    let strike: DoubleStrike;
+
+    beforeEach(() => {
+        strike = new DoubleStrike();
+    });
+
+    describe("#constructor()", () => {
+        it("should create a Double Strike with correct root key", () => {
+            const newJson = Utility.jsonify(strike);
+            assert.equal(newJson.rootKey, "w:dstrike");
+        });
+    });
+});