Removes broken link from documentation alongside with redundant fragm…

…ent of the documentation. Fixes gh-113 (#144)

docs/src/main/asciidoc/using.adoc

@@ -14,4 +14,4 @@ If you are starting out with {project-full-name}, you should probably read the
 
 You should now understand how you can use {project-full-name} and some best practices that you should follow.
 You can now go on to learn about specific
-<<project-features#project-features, {project-full-name} features>>, or you could skip ahead and read about the link:integrations[integrations available in {project-full-name}].
+<<project-features#project-features, {project-full-name} features>>.