Move cypress to docs folder

docs/cypress/integration/elements/box.spec.js

@@ -1,6 +1,6 @@
 describe("Elements/Box", () => {
   beforeEach(() => {
-    cy.visit("http://127.0.0.1:4000/cypress/elements/box/");
+    cy.visit("http://127.0.0.1:4000/cyp/elements/box/");
   });
 
   it("has a .box element", () => {

docs/cypress/integration/elements/button.spec.js

@@ -1,6 +1,6 @@
 describe("Elements/Button", () => {
   beforeEach(() => {
-    cy.visit("http://127.0.0.1:4000/cypress/elements/button/");
+    cy.visit("http://127.0.0.1:4000/cyp/elements/button/");
   });
 
   it("has a Button", () => {

docs/cypress/integration/elements/container.spec.js

@@ -1,6 +1,6 @@
 describe("Elements/Container", () => {
   beforeEach(() => {
-    cy.visit("http://127.0.0.1:4000/cypress/elements/container/");
+    cy.visit("http://127.0.0.1:4000/cyp/elements/container/");
   });
 
   it("has a Container element", () => {

docs/package.json

@@ -10,6 +10,7 @@
     "babel-preset-env": "^1.7.0",
     "babel-preset-es2015-ie": "^6.7.0",
     "clean-css-cli": "^4.3.0",
+    "cypress": "^8.7.0",
     "metalsmith": "^2.3.0",
     "metalsmith-filter": "^1.0.2",
     "node-sass": "^4.13.1",