docs(docs): Replace <key> with a concrete valid example public key

Author: stevenj

docs/src/architecture/08_concepts/rbac_id_uri/catalyst-id-uri.md

@@ -132,6 +132,7 @@ The overall `path` specification is: `<initial role0 key>/<role>/<rotation>#encr
   * This does not change, even if the Initial Role 0 key is revoked.
   * This allows for an unambiguous identifier for the RBAC keychain.
   * It is not necessarily the key being identified.
+  * An example Role 0 Key is `FftxFnOrj2qmTuB2oZG2v0YEWJfKvQ9Gg8AgNAhDsKE`
 * `<role>` - *Optional* This is the Role number being used.
   * It is a positive number, starting at 0, and no greater than 65535.
   * If it is not defined, then its default value is 0.
@@ -154,44 +155,48 @@ The first implementation will be Catalyst Voices.
 
 ## Test Vectors
 
-* `id.catalyst://cardano/<key>`
+* `id.catalyst://cardano/FftxFnOrj2qmTuB2oZG2v0YEWJfKvQ9Gg8AgNAhDsKE`
   * A Signing key registered on the Cardano Main network.
   * Role 0 - Rotation 0.
   * `username` - undefined.
   * `nonce` - undefined.
-  * In this example, it is identical to `<key>/0/0` or `<key>/0`.
-* `id.catalyst://cardano/<key>/0`
+  * In this example, it is identical to `FftxFnOrj2qmTuB2oZG2v0YEWJfKvQ9Gg8AgNAhDsKE/0/0` or
+  `FftxFnOrj2qmTuB2oZG2v0YEWJfKvQ9Gg8AgNAhDsKE/0`.
+* `id.catalyst://cardano/FftxFnOrj2qmTuB2oZG2v0YEWJfKvQ9Gg8AgNAhDsKE/0`
   * A Signing key registered on the Cardano Main network.
   * Role 0 - Rotation 0.
   * `username` - undefined.
   * `nonce` - undefined.
-  * In this example, it is identical to `<key>/0/0` or `<key>`.
-* `id.catalyst://gary@cardano/<key>/0/0`
+  * In this example, it is identical to `FftxFnOrj2qmTuB2oZG2v0YEWJfKvQ9Gg8AgNAhDsKE/0/0` or
+  `FftxFnOrj2qmTuB2oZG2v0YEWJfKvQ9Gg8AgNAhDsKE`.
+* `id.catalyst://gary@cardano/FftxFnOrj2qmTuB2oZG2v0YEWJfKvQ9Gg8AgNAhDsKE/0/0`
   * A Signing key registered on the Cardano Main network.
   * Role 0 - Rotation 0.
   * `username` - `gary`.
   * `nonce` - undefined.
-  * In this example, it is identical to `<key>` or `<key>/0`.
-* `id.catalyst://faith@preprod@cardano/<key>/7/3`
+  * In this example, it is identical to `FftxFnOrj2qmTuB2oZG2v0YEWJfKvQ9Gg8AgNAhDsKE` or
+  `FftxFnOrj2qmTuB2oZG2v0YEWJfKvQ9Gg8AgNAhDsKE/0`.
+* `id.catalyst://faith@preprod@cardano/FftxFnOrj2qmTuB2oZG2v0YEWJfKvQ9Gg8AgNAhDsKE/7/3`
   * A Signing key registered on the Cardano pre-production network.
   * Role 7 - Rotation 3.
   * `username` - `faith`
   * `nonce` - undefined.
   * The Key for Role 7, and its third published rotation
   (i.e., the fourth key published, the first is the initial key, plus 3 rotations following it).
-* `id.catalyst://faith:173710179@preprod@cardano/<key>/2/0#encrypt`
+* `id.catalyst://faith:173710179@preprod@cardano/FftxFnOrj2qmTuB2oZG2v0YEWJfKvQ9Gg8AgNAhDsKE/2/0#encrypt`
   * A Public Encryption key registered on the Cardano pre-production network.
   * Role 2 - Rotation 0.
   * `username` - `faith`
   * `nonce` - 173710179.
   * The initially published Public Encryption Key for Role 2.
-* `kid.catalyst-rbac://:173710179@midnight/<key>/0/1`
+* `kid.catalyst-rbac://:173710179@midnight/FftxFnOrj2qmTuB2oZG2v0YEWJfKvQ9Gg8AgNAhDsKE/0/1`
   * A Signing key registered on the Midnight Blockchain Main network
   * Role 0 - Rotation 1.
   * `username` - undefined.
   * `nonce` - 173710179.
-  * In this example, it is NOT the same as the `<key>`, as it identifies the first rotation after `<key>`.
-* `kid.catalyst-rbac://midnight/<key>/2/1#encrypt`
+  * In this example, it is NOT the same as the `FftxFnOrj2qmTuB2oZG2v0YEWJfKvQ9Gg8AgNAhDsKE`,
+  as it identifies the first rotation after `FftxFnOrj2qmTuB2oZG2v0YEWJfKvQ9Gg8AgNAhDsKE`.
+* `kid.catalyst-rbac://midnight/FftxFnOrj2qmTuB2oZG2v0YEWJfKvQ9Gg8AgNAhDsKE/2/1#encrypt`
   * A public encryption key registered on the Midnight Blockchain Main network.
   * Role 2 - Rotation 1.
   * `username` - undefined.