Starting again

Author: iriark01

docs.json

@@ -654,9 +654,13 @@
                 "title": "Porting targets",
                 "intro": {
                     "type": "markdown",
-                    "url": "https://github.com/ARMmbed/mbed-os-5-docs/blob/development/docs/reference/contributing/target/target.md"
+                    "url": "https://github.com/ARMmbed/mbed-os-5-docs/blob/development/docs/reference/api/thread_safety.md"
                 },
                 "sources": [
+                  {
+                      "type": "markdown",
+                      "url": "https://github.com/ARMmbed/mbed-os-5-docs/blob/development/docs/reference/contributing/target/target.md"
+                  },
                     {
                         "type": "markdown",
                         "url": "https://github.com/ARMmbed/mbed-os-5-docs/blob/development/docs/reference/contributing/target/us_ticker.md"