Fix link issue

https://github.com/VirgilSecurity/virgil-sdk-x redirects to https://github.com/VirgilSecurity/sdk-x

README.md

@@ -1659,7 +1659,7 @@ Most of these are paid services, some have free tiers.
 * [KKPinCodeTextField](https://github.com/kolesa-team/ios_pinCodeTextField) - A customizable verification code textField for phone verification codes, passwords etc.
 * [🗄 Vault](https://github.com/umbri/Vault) - Simple and Secure container for passwords and other sensitive data
 * [Virgil SWIFT PFS SDK](https://github.com/VirgilSecurity/virgil-sdk-pfs-x) - An SDK that allows developers to add the Perfect Forward Secrecy (PFS) technologies to their digital solutions to protect previously intercepted traffic from being decrypted even if the main Private Key is compromised.
-* [Virgil Security Objective-C/Swift SDK](https://github.com/VirgilSecurity/virgil-sdk-x) - An SDK which allows developers to add full end-to-end security to their existing digital solutions to become HIPAA and GDPR compliant and more using Virgil API.
+* [Virgil Security Objective-C/Swift SDK](https://github.com/VirgilSecurity/sdk-x) - An SDK which allows developers to add full end-to-end security to their existing digital solutions to become HIPAA and GDPR compliant and more using Virgil API.
 
 ### Encryption
 * [AESCrypt-ObjC](https://github.com/Gurpartap/AESCrypt-ObjC) - A simple and opinionated AES encrypt / decrypt Objective-C class that just works.