Repeated text in servlet X.509 authentication docs

[cselagea]

Describe the bug
Two of the paragraphs in the servlet X.509 authentication documentation contain the same three sentences:

You can also use SSL with “mutual authentication”. The server then requests a valid certificate from the client as part of the SSL handshake. The server authenticates the client by checking that its certificate is signed by an acceptable authority. If a valid certificate has been provided, it can be obtained through the servlet API in an application. The Spring Security X.509 module extracts the certificate by using a filter. It maps the certificate to an application user and loads that user’s set of granted authorities for use with the standard Spring Security infrastructure.

You can also use SSL with “mutual authentication”. The server then requests a valid certificate from the client as part of the SSL handshake. The server authenticates the client by checking that its certificate is signed by an acceptable authority. For example, if you use Tomcat, you should read the Tomcat SSL instructions. You should get this working before trying it out with Spring Security.

To Reproduce
See https://docs.spring.io/spring-security/reference/servlet/authentication/x509.html

Expected behavior
Remove the duplicated sentences, perhaps merging the two paragraphs if it makes sense to do so.

Sample
N/A