Fix links in MeshInterface.md

Update links.

Author: Amanda Butler

docs/reference/api/connectivity/networksocket/MeshInterface.md

@@ -1,6 +1,6 @@
 <h2 id="mesh-api">Mesh</h2>
 
-The Arm Mbed mesh API allows the application to use the IPv6 mesh network topologies through the [nanostack](/docs/development/reference/mesh-tech.html#nanostack) networking stack.
+The Arm Mbed mesh API allows the application to use the IPv6 mesh network topologies through the [nanostack](/docs/development/reference/technology.html#nanostack) networking stack.
 
 **Tips:**
 - The mesh API supports 6LoWPAN-ND (neighbor discovery) and Thread bootstrap modes.
@@ -25,4 +25,4 @@ The application below demonstrates a simple light control application, where dev
 
 ### Related content
 
-- [Nanostack](/docs/development/reference/mesh-tech.html) technology reference material.
+- [Nanostack](/docs/development/reference/technology.html#nanostack) technology reference material.