api-builder: fix githublinks

Closes angular#1435
Closes angular#1433

Author: petebacondarwin

tools/api-builder/angular.io-package/templates/lib/githubLinks.html

@@ -1,7 +1,7 @@
 {% macro githubHref(doc) -%}
-https://github.com/{$ versionInfo.gitRepoInfo.owner $}/{$ versionInfo.gitRepoInfo.repo $}/tree/{$ versionInfo.currentVersion.isSnapshot and versionInfo.currentVersion.SHA or versionInfo.currentVersion.raw $}/modules/{$ doc.fileInfo.relativePath $}#L{$ doc.location.start.line+1 $}-L{$ doc.location.end.line+1 $}
+https://github.com/{$ versionInfo.gitRepoInfo.owner $}/{$ versionInfo.gitRepoInfo.repo $}/tree/{$ versionInfo.currentVersion.isSnapshot and versionInfo.currentVersion.SHA or versionInfo.currentVersion.raw $}/modules/{$ doc.fileInfo.projectRelativePath $}#L{$ doc.location.start.line+1 $}-L{$ doc.location.end.line+1 $}
 {%- endmacro %}
 
 {% macro githubViewLink(doc) -%}
-  <a href="{$ githubHref(doc) $}">{$ doc.fileInfo.relativePath $} (line {$ doc.location.start.line+1 $})</a>
-{%- endmacro -%}
+  <a href="{$ githubHref(doc) $}">{$ doc.fileInfo.projectRelativePath $} (line {$ doc.location.start.line+1 $})</a>
+{%- endmacro %}