Display a overlay window with description of provided argument

[mnlp]

The problem I want to solve is to have a quick way to get a short description of http codes. 

 

I envision this as e.g. I activate alfred and type  'hcode 501' hit enter, and I get a small info box on overlay with a predefined text: 

 

501 Not Implemented
"The server either does not recognize the request method, or it lacks the ability to fulfil the request. Usually this implies future availability (e.g., a new feature of a web-service API)"

(text from Wikipedia)

 

The texts could be stored in any way, e.g. a text file on disk, I don't care.

 

Any suggestions or pointers?

 

Thanks