Fix links by eliminating white space in markdown

[nealmcb]

4 of the hyperlinks were badly formated because there was white space (newline or space character) between the "]" and the "(" of the links. This should look a little better.

[nealmcb]

The build errors seem to have nothing to do with my documentation fix. I'd guess that somehow since the last time the build checks succeeded, that the pycodestyle requirements changed, or something, to no longer accept the bare excepts noted in the detailed output:

$ pycodestyle --max-line-length=150 .
./cgtd/cgtd.py:80:5: E722 do not use bare except'
./cgtd/cgtd.py:89:5: E722 do not use bare except'

[brainstorm]

No worries @nealmcb, I'll take a look at that soon, thanks for your contribution!