Update docs.json

Amanda Butler · web-flow · commit 24e4bf12ddc2 · 2018-05-01T13:50:45.000-05:00
Add QuadSPI porting guide.
diff --git a/docs.json b/docs.json
@@ -630,6 +630,10 @@
                                 "type": "markdown",
                                 "url": "https://github.com/ARMmbed/Handbook/blob/5.8/docs/reference/contributing/target/Watchdog.md"
                             },
+                            {
+                                "type": "markdown",
+                                "url": "https://github.com/ARMmbed/Handbook/blob/5.8/docs/reference/contributing/target/QuadSPI.md"
+                            },
                             {
                                 "type": "markdown",
                                 "url": "https://github.com/ARMmbed/Handbook/blob/5.8/docs/reference/contributing/target/usb.md"
