Update mesh-api.yaml

Author: tonyheap

specification/mesh-api.yaml

@@ -204,7 +204,7 @@ info:
     ### Open source
     We have a number of open source resources that you might find useful:
 
-    | Asset                     | Description                                                                                                                                                                    | Links                                                                                                                                                  |
+    | Resource                  | Description                                                                                                                                                                    | Links                                                                                                                                                  |
     |---------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------|
     | MESH sandbox              | For early developer testing, a realistic MESH experience that runs locally in docker or as an embedded python package. For more details, see 'Environments and testing' below. | [GitHub repo](https://github.com/NHSDigital/mesh-sandbox) \| [Python Package Index](https://pypi.org/project/mesh-sandbox/)                            |
     | MESH Python client        | A fully-featured Python client library that conforms to our technical integration requirements. This is not the same as the MESH Java client.                                  | [GitHub repo](https://github.com/NHSDigital/mesh-client) \| [Python Package Index](https://pypi.org/project/Mesh-Client)                               |