[source:feat] add Amazon keybindings

<space>c: Add to Cart
<space>R: View Product Reviews
<space>Q: View Product Q&A
<space>A: Open Account page
<space>C: Open Cart page
<space>O: Open Orders page

README.md

@@ -62,6 +62,12 @@ sites have been included which can help you perform some common actions:
 <tr><th colspan="2"><a href="//amazon.com"><img src="./assets/favicons/amazon.com.ico" width="16px"> amazon.com</a></th></tr><tr><td><strong>Mapping</strong></td><td><strong>Description</strong></td></tr>
 <tr><td><code>&lt;Space&gt;fs</code></td><td>Fakespot</td></tr>
 <tr><td><code>&lt;Space&gt;a</code></td><td>View product</td></tr>
+<tr><td><code>&lt;Space&gt;c</code></td><td>Add to Cart</td></tr>
+<tr><td><code>&lt;Space&gt;R</code></td><td>View Product Reviews</td></tr>
+<tr><td><code>&lt;Space&gt;Q</code></td><td>View Product Q&A</td></tr>
+<tr><td><code>&lt;Space&gt;A</code></td><td>Open Account page</td></tr>
+<tr><td><code>&lt;Space&gt;C</code></td><td>Open Cart page</td></tr>
+<tr><td><code>&lt;Space&gt;O</code></td><td>Open Orders page</td></tr>
 <tr><th colspan="2"><a href="//behance.net"><img src="./assets/favicons/behance.net.ico" width="16px"> behance.net</a></th></tr><tr><td><strong>Mapping</strong></td><td><strong>Description</strong></td></tr>
 <tr><td><code>&lt;Space&gt;s</code></td><td>Appreciate project</td></tr>
 <tr><td><code>&lt;Space&gt;b</code></td><td>Add project to collection</td></tr>

keys.js

@@ -160,6 +160,36 @@ const maps = {
       description: "View product",
       callback:    actions.az.viewProduct,
     },
+    {
+      alias:       "c",
+      description: "Add to Cart",
+      callback:    actions.createHint("#add-to-cart-button"),
+    },
+    {
+      alias:       "R",
+      description: "View Product Reviews",
+      callback:    actions.openLink("#customerReviews"),
+    },
+    {
+      alias:       "Q",
+      description: "View Product Q&A",
+      callback:    actions.openLink("#Ask"),
+    },
+    {
+      alias:       "A",
+      description: "Open Account page",
+      callback:    actions.openLink("/gp/css/homepage.html"),
+    },
+    {
+      alias:       "C",
+      description: "Open Cart page",
+      callback:    actions.openLink("/gp/cart/view.html"),
+    },
+    {
+      alias:       "O",
+      description: "Open Orders page",
+      callback:    actions.openLink("/gp/css/order-history"),
+    },
   ],
 
   "www.google.com": [