Mentioning web address in a doc-string.

[amanabt]

Commit Hash: 28729c3

Issue
There is one instance in the code in this commit in which the developer, while mentioning a long web address(enough to exceed the 80 character limit), has divided the web address into three different lines.
You can find that instance in line number 132 of the file DG_Maxwell/code/app/wave_equation.py.
It looks like this

    https://cocalc.com/projects/1b7f404c-87ba-40d0-816c-2eba17466aa8/files/
    PM_2_5/wave_equation/documents/wave_equation_report
    /A_matrix.pdf?session=default

The issue is that when you copy the link written like this and paste it in the address bar of your browser, the new lines, and the tab space are converted into spaces and most probably, this will lead you a non-existing web page, or far worse, it may lead you to a different web page.

Suggestion
I think that we should just ignore the 80 character limit when mentioning the web address in the doc-strings.

[mchandra]

Convert the web address into a tiny url and put the tiny url.

[amanabt]

@mchandra
I will add this in the documentation guidelines. I think that we can use Google URL shortener
https://goo.gl/
@Balavarun5 Do you agree?

[Balavarun5]

Yes, It's a good idea