refactor: docs path updates (backport #17459) (#17624)

Co-authored-by: samricotta <37125168+samricotta@users.noreply.github.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
Co-authored-by: Marko <marbar3778@yahoo.com>
Co-authored-by: samricotta <samanthalricotta@gmail.com>

docs/rfc/README.md

@@ -13,7 +13,7 @@ discussion that might otherwise only be recorded in an ad-hoc way (for example,
 via gists or Google docs) that are difficult to discover for someone after the
 fact. An RFC _may_ give rise to more specific architectural _decisions_ for
 the Cosmos SDK, but those decisions must be recorded separately in
-[Architecture Decision Records (ADR)](../architecture/).
+[Architecture Decision Records (ADR)](../architecture).
 
 As a rule of thumb, if you can articulate a specific question that needs to be
 answered, write an ADR. If you need to explore the topic and get input from
@@ -36,3 +36,6 @@ sections.
 ## Table of Contents
 
 <!-- - [RFC-NNN: Title](./rfc-NNN-title.md) -->
+
+* [RFC-002: Zero Copy Encoding](./rfc-002-zero-copy-encoding.md)
+

docs/rfc/_category_.json

@@ -1,5 +0,0 @@
-{
-  "label": "RFCs",
-  "position": 12,
-  "link": null
-}