Update sig-docs readme

Signed-off-by: Anshuman Tripathi <[email protected]>

sig-docs/README.md

@@ -102,9 +102,8 @@ The following [subprojects][subproject-definition] are owned by sig-docs:
 ### website
 - **Owners:**
   - [kubernetes/website](https://github.com/kubernetes/website/blob/master/OWNERS)
-
-[subproject-definition]: https://github.com/kubernetes/community/blob/master/governance.md#subprojects
-[working-group-definition]: https://github.com/kubernetes/community/blob/master/governance.md#working-groups
+  - [subproject-definition](../governance.md#subprojects)
+  - [working-group-definition](../governance.md#working-groups)
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