Add more anchors inside docs

Easier to reach specific doc content when anchors are defined

README.adoc

@@ -61,24 +61,28 @@ Click the "*Add Git*" button in the "*Global Tool Configuration*" section under
 
 image::images/enable-jgit.png[Enable JGit or JGit with Apache HTTP Client]
 
+[[jgit-with-apache-http-client]]
 === JGit with Apache HTTP Client
 
 The original JGit implementation inside the git client plugin had issues with active directory authentication.
 A workaround was implemented to provide JGit but use Apache HTTP client for authentication.
 The issue in JGit has now been resolved and delivered in git client plugin releases.
 JGit with Apache HTTP Client continues to delivered to assure compatibility.
 
+[[windows-credentials-manager]]
 == Windows Credentials Manager
 
 Git for Windows is able to integrate with the Windows Credentials Manager for secure storage of credentials.
 Windows Credentials Manager works very well for interactive users on the Windows desktop.
 Windows Credentials Manager does not work as well for batch processing in the git client plugin.
 It is best to disable Windows Credentials Manager when installing Git on Jenkins agents running Windows.
 
+[[bug-reports]]
 == Bug Reports
 
 Report issues and enhancements with the https://issues.jenkins-ci.org[Jenkins issue tracker].
 
+[[contributing-to-the-plugin]]
 == Contributing to the Plugin
 
 Refer to link:CONTRIBUTING.adoc#contributing-to-the-git-client-plugin[contributing to the plugin] for contribution guidelines.