External links don't work properly for some medias with special characters such as "&"

[AmineI]

For example, external links for Wallace & Gromit sends a Google search for "Wallace", because the "&" character is interpreted as ending the query parameter.

It should be simple enough to fix : Passing the title through an encodeURIComponent before creating the external link url.

I'll push a fix in #47 , but still logging the issue in case the PR is not merged.