Update links to Mbed Ls

Author: bridadan

docs/reference/contributing/tools/mbedls.md

@@ -16,6 +16,4 @@ Further, Mbed-ls only detects devices that meet the following criteria:
 
 ### Implementation
 
-When adding a board to Mbed-ls, you typically need to add a new definition to the platform database. Before you add your board to the Mbed-ls platform database, you need the Unique product code, a four-digit hexadecimal identifier, you obtained through the mbed enabled program. You can add a new board to the platform database by adding an entry mapping from your board's unique product code to the name of the board into the `DEFAULT_PLATFORM_DB` dictionary in [`mbed_lstools/platform_database.py`](https://github.com/ARMmbed/mbed-ls/blob/master/mbed_lstools/platform_database.py).
-
-If your board uses an interface firmware other than J-Link, STLink, DAPLink or OpenSDA, you need to add a new vendor string for detection on windows. If you need to add a new vendor string, add it to the `usb_vendor_list` member of the `MbedLsToolsBase` class in [`mbed_lstools/lstools_base.py`](https://github.com/ARMmbed/mbed-ls/blob/master/mbed_lstools/lstools_base.py).
+Please see the [implementation guide](https://github.com/ARMmbed/mbed-os-tools/tree/master/packages/mbed-ls#adding-platform-support) in Mbed LS for more details.

docs/tools/testing/greentea.md

@@ -570,7 +570,7 @@ $ mbedgt --use-tids 02400203C3423E603EBEC3D8,024002031E031E6AE3FFE3D2
 
 Where `02400203C3423E603EBEC3D8` and `024002031E031E6AE3FFE3D` are the target IDs of platforms attached to your system.
 
-You can view target IDs using the [`mbed-ls`](https://github.com/ARMmbed/mbed-ls) tool (installed with Greentea).
+You can view target IDs using the [`mbed-ls`](https://github.com/ARMmbed/mbed-os-tools/tree/master/packages/mbed-ls) tool (installed with Greentea).
 
 ```
 $ mbedls