add links to wg page

WORKINGGROUPS.md

@@ -4,14 +4,18 @@ name: Working Groups
 linkname: Work
 ---
 
+# Working Groups
+
+The primary function of C.A.S.A. is to host working groups that publish specifications and occasionally implementations or other software artefacts.
+
 ## List of working groups
 
 | Working Group | Scope | Meeting Frequency | Chair |
 | :------------ | :----- | :----- | :----- |
-| **Editorial** | New CAIPs and Namespaces | every 4 weeks | @bumblefudge |
+| **Editorial** | New [CAIPs] and [Namespaces] | every 4 weeks | @bumblefudge |
 | **Addressing** | CAIP-2, -10, -19; URN/URI systems | Sporadic/By request | @bumblefudge |
 | **JSON-RPC**  | CAIP-25, -27 | Sporadic/By request | @hmalik88 |
-| **CACAO/AuthZ** | CAIP-74, -122, -168; [varint]() & [multidid](), interop with UCAN and ZCAP-LD | every 4 weeks | @bumblefudge/TBD | 
+| **CACAO/AuthZ** | CAIP-74, -122, -168; [varsig] & [multidid], interop with UCAN and ZCAP-LD | every 4 weeks | @bumblefudge/TBD | 
 | **Browser Security** | CAIP-169, -171 | Sporadic/By request | @kdenhartog |
 | **Secure Design** | UX<>Security, Privacy | every 4 weeks | @depatchedmode | 
 
@@ -22,3 +26,8 @@ linkname: Work
 3. Submit a Pull Request to the CASA repository adding your working group.
 4. Propose your working group at the next editorial WG or in-person event. If approved, your PR will be merged, and your working group meeting schedule will be added to the CASA calendar.
 5. Recruit participants for your working group.
+
+[varsig]: https://github.com/chainAgnostic/varsig
+[multidid]: https://github.com/chainAgnostic/multidid
+[CAIPs]: https://chainagnostic.org/
+[Namespaces]: https://namespaces.chainagnostic.org/