Update README.md

README.md

@@ -84,15 +84,6 @@ implementation("at.asitplus.signum:indispensable-cosef:$version")
 implementation("at.asitplus.signum:supreme:0.2.0")
 ```
 
-In addition, (while we're waiting for upstream to release new a stable version of `kotlinx.serialization`),
-add the following repository to your project, if you want to use the COSE functionality provided by Indispensable Cosef
-
-```kotlin
-repositories {
-  maven(uri("https://raw.githubusercontent.com/a-sit-plus/kotlinx.serialization/mvn/repo"))
-}
-```
-
 <br>
 
 _Relevant classes like `CryptoPublicKey`, `X509Certificate`, `Pkcs10CertificationRequest`, etc. all
@@ -171,8 +162,9 @@ val signature = signer.sign(plaintext) {
 ... but you cannot change the fact that you configured this key to need biometry. Consider this when creating your keys.
 
 On the JVM, no native secure hardware storage is available.
-File-based keystores can be accessed using [`JKSProvider { file { /* ... */ } }`](https://a-sit-plus.github.io/signum/supreme/at.asitplus.signum.supreme.os/-j-k-s-provider/.index.html).
+File-based keystores can be accessed using `JKSProvider { file { /* ... */ } }`.
 Other keystores can be accessed using `JKSProvider { withBackingObject{ /* ... */ } }` or `JksProvider { customAccessor{ /* ... */ } }`.
+For more details, please refer to the provider's [configuration options](https://a-sit-plus.github.io/signum/supreme/at.asitplus.signum.supreme.os/-j-k-s-provider-configuration/index.html).
 
 #### Key Attestation