Link is not being escaped, breaking the github search querry

[FFY00]

github-awards/app/views/users/show.html.erb

Line 51 in 415d575

<%= link_to "https://github.com/search?q=user:#{@user.login}+language:#{user_rank.language}", target: '_blank' do %>

Here, the link is not being escaped. This breaks the github search query for some languages like C#. I'm not a rails developer but as far as I know, this should be escaped by default.

Reproduce
Go to http://git-awards.com/users/ffy00 and click in Repos on the C# section.
This will open https://github.com/search?q=user:ffy00+language:c# which shows the C repositories, not C#. The # is being used as html id identifier, not as a part of the string.
If you change the link to https://github.com/search?q=user:ffy00+language:c%23, it works.

Note
You can also use the l param (ex. &l=c%23) to specify the language.

[lemire]

The same holds true with C++.