Incorrect documentation links

[breun]

On https://spring.io/projects/spring-ldap#learn there are some incorrect links:

• 3.2.4-SNAPSHOT links to https://docs.spring.io/spring-ldap/reference/3.2-SNAPSHOT/index.html, which shows the documentation for 3.2.5-SNAPSHOT.
• 3.2.3-SNAPSHOT links to https://docs.spring.io/spring-ldap/reference/3.2, which shows the documentation for 3.2.4.
• 3.2.3 links to https://docs.spring.io/spring-ldap/reference/3.2.3/index.html, which redirects to https://docs.spring.io/spring-ldap/reference/index.html, which shows the documentation for 3.2.4.
• 3.2.2 links to https://docs.spring.io/spring-ldap/reference/3.2, which shows the documentation for 3.2.4.
• 3.1.6-SNAPSHOT links to https://docs.spring.io/spring-ldap/reference/3.1-SNAPSHOT/index.html, which shows the documentation for 3.1.7-SNAPSHOT.
• 3.1.5-SNAPSHOT links to https://docs.spring.io/spring-ldap/reference/3.1.5-SNAPSHOT/index.html, which redirects to https://docs.spring.io/spring-ldap/reference/3.1-SNAPSHOT/index.html, which shows the documentation for 3.1.7-SNAPSHOT.
• 3.1.5 links to https://docs.spring.io/spring-ldap/reference/3.1.5/index.html, which redirects to https://docs.spring.io/spring-ldap/reference/3.1/index.html, which displays the documentation for 3.1.6.