autodoc updates

Author: lestrrat

README.md

@@ -12,7 +12,91 @@ Import this package for its side effects to register Ed448 with `jwx`:
 
 <!-- INCLUDE(example_test.go) -->
 ```go
+package ed448_test
+
+import (
+  "encoding/json"
+  "fmt"
+
+  "github.com/cloudflare/circl/sign/ed448"
+  "github.com/lestrrat-go/jwx/v3/jwa"
+  "github.com/lestrrat-go/jwx/v3/jwk"
+  "github.com/lestrrat-go/jwx/v3/jws"
+
+  _ "github.com/lestrrat-go/jwx-circl-ed448"
+)
+
+func Example() {
+  // Generate an Ed448 key pair
+  pub, priv, err := ed448.GenerateKey(nil)
+  if err != nil {
+    fmt.Printf("failed to generate key: %s\n", err)
+    return
+  }
+
+  payload := []byte("Hello, Ed448!")
+
+  // Sign and verify with raw keys
+  signed, err := jws.Sign(payload, jws.WithKey(jwa.EdDSAEd448(), priv))
+  if err != nil {
+    fmt.Printf("failed to sign: %s\n", err)
+    return
+  }
+
+  verified, err := jws.Verify(signed, jws.WithKey(jwa.EdDSAEd448(), pub))
+  if err != nil {
+    fmt.Printf("failed to verify: %s\n", err)
+    return
+  }
+  fmt.Printf("%s\n", verified)
+
+  // Import raw keys into JWK
+  jwkPriv, err := jwk.Import(priv)
+  if err != nil {
+    fmt.Printf("failed to import private key: %s\n", err)
+    return
+  }
+
+  jwkPub, err := jwk.Import(pub)
+  if err != nil {
+    fmt.Printf("failed to import public key: %s\n", err)
+    return
+  }
+
+  // Sign and verify with JWK keys
+  signed, err = jws.Sign(payload, jws.WithKey(jwa.EdDSAEd448(), jwkPriv))
+  if err != nil {
+    fmt.Printf("failed to sign with JWK key: %s\n", err)
+    return
+  }
+
+  verified, err = jws.Verify(signed, jws.WithKey(jwa.EdDSAEd448(), jwkPub))
+  if err != nil {
+    fmt.Printf("failed to verify with JWK key: %s\n", err)
+    return
+  }
+  fmt.Printf("%s\n", verified)
+
+  // JWK JSON round-trip
+  buf, err := json.MarshalIndent(jwkPriv, "", "  ")
+  if err != nil {
+    fmt.Printf("failed to marshal JWK: %s\n", err)
+    return
+  }
+
+  parsed, err := jwk.ParseKey(buf)
+  if err != nil {
+    fmt.Printf("failed to parse JWK: %s\n", err)
+    return
+  }
+  _ = parsed
+
+  // Output:
+  // Hello, Ed448!
+  // Hello, Ed448!
+}
 ```
+source: [example_test.go](https://github.com/lestrrat-go/jwx-circl-ed448/blob/main/example_test.go)
 <!-- END INCLUDE -->
 
 # Installation