Footer little changes

Very few changes related to…
- Testing how the menu in the footer looks
- Cleaning white spaces in the index.
- More test with grunt build, which still does not work. I also test
creating a new project with `yo angular` and still does not work. It is
a general problem. `node, npr, brew` the system configuration, and
factors that might scape to my control, are not set up properly. But
this is another issue.