Fixes links in the about webpage.
Fixes links in the about webpage.

citation-style-editor/csl-editor-demo-site,citation-style-language/csl-editor-demo-site,fbennett/csl-editor-demo-site,citation-style-editor/csl-editor-demo-site,fbennett/csl-editor-demo-site,citation-style-language/csl-editor-demo-site,citation-style-language/csl-editor-demo-site,citation-style-editor/csl-editor-demo-site