Fix links with parentheses

README.md

@@ -52,10 +52,10 @@ If you have a comment or suggestion, please open an [Issue](https://github.com/d
   * [Create configuration](#create-configuration)
   * [Replace agents](#replace-agents)
   * [Copy public key](#copy-public-key)
-  * [(Optional) Save public key for identity file configuration](#-optional--save-public-key-for-identity-file-configuration)
+  * [(Optional) Save public key for identity file configuration](#optional-save-public-key-for-identity-file-configuration)
   * [Connect with public key authentication](#connect-with-public-key-authentication)
   * [Import SSH keys](#import-ssh-keys)
-  * [Remote Machines (Agent Forwarding)](#remote-machines--agent-forwarding-)
+  * [Remote Machines (Agent Forwarding)](#remote-machines-agent-forwarding)
     + [Steps for older distributions](#steps-for-older-distributions)
   * [GitHub](#github)
   * [OpenBSD](#openbsd-1)