Change references from SVNWEB to CGIT for documents in "content/en"

[se]

Summary

The web site still refers to SVNWEB in a lot of URL, which will lead to outdated information being returned, over time.

Test Plan

Apply patch, verify correct function of the web-site.

Linked information should be displayed in a format that resembles that displayed by the original URL.

Since CGIT does not format output identical to SVNWEB?view=markup, there are differences that can only be avoided by changes to the CGIT server.

[se]

website/content/en/ports/searching.adoc

14

The previous sentence did not make much sense, anymore. There have been so many commits to bsd.port,subdir.mk that it is impossible to find the search options with reasonable effort.