doc and extra docs

Signed-off-by: gmulhearn <gmulhearn@proton.me>

README.md

@@ -25,6 +25,7 @@ The repository contains Rust crates to build
   - [`did_sov`](did_core/did_methods/did_resolver_sov) - https://sovrin-foundation.github.io/sovrin/spec/did-method-spec-template.html
   - [`did_web`](did_core/did_methods/did_resolver_web) - https://w3c-ccg.github.io/did-method-web/
   - [`did_key`](did_core/did_methods/did_key) - https://w3c-ccg.github.io/did-method-key/
+  - [`did_jwk`](did_core/did_methods/did_jwk) - https://github.com/quartzjer/did-jwk/blob/main/spec.md
 
 # Contact
 Do you have a question ❓Are you considering using our components? 🚀 We'll be excited to hear from you. 👋

did_core/did_methods/did_jwk/src/lib.rs

@@ -186,7 +186,11 @@ mod tests {
         format!("did:jwk:{}", valid_encoded_jwk())
     }
 
-    fn invalid_did_jwk_string() -> String {
+    fn invalid_did_jwk_string_wrong_method() -> String {
+        format!("did:sov:{}", valid_encoded_jwk())
+    }
+
+    fn invalid_did_jwk_string_invalid_id() -> String {
         "did:jwk:somenonsense".to_string()
     }
 
@@ -214,8 +218,13 @@ mod tests {
     }
 
     #[test]
-    fn test_deserialize_error() {
-        assert!(serde_json::from_str::<DidJwk>(&invalid_did_jwk_string()).is_err());
+    fn test_deserialize_error_wrong_method() {
+        assert!(serde_json::from_str::<DidJwk>(&invalid_did_jwk_string_wrong_method()).is_err());
+    }
+
+    #[test]
+    fn test_deserialize_error_invalid_id() {
+        assert!(serde_json::from_str::<DidJwk>(&invalid_did_jwk_string_invalid_id()).is_err());
     }
 
     #[test]
@@ -227,8 +236,13 @@ mod tests {
     }
 
     #[test]
-    fn test_parse_error() {
-        assert!(DidJwk::parse(invalid_did_jwk_string()).is_err());
+    fn test_parse_error_wrong_method() {
+        assert!(DidJwk::parse(invalid_did_jwk_string_wrong_method()).is_err());
+    }
+
+    #[test]
+    fn test_parse_error_invalid_id() {
+        assert!(DidJwk::parse(invalid_did_jwk_string_invalid_id()).is_err());
     }
 
     #[test]