Link to BR96b paper is broken

[mithro]

The BR96b paper in the https://docs.verilogtorouting.org/en/latest/zreferences/ section is currently broken (it ends in a 404).

BR96b
Vaughn Betz and Jonathan Rose. On biased and non-uniform global routing architectures and cad tools for fpgas. CSRI Technical Report 358, University of Toronto, 1996. URL: http://www.eecg.toronto.edu/~vaughn/ papers/techrep.ps.Z.

[mithro]

• http://www.eecg.toronto.edu/~vaughn/%20papers/techrep.ps.Z is a 404 (not found)
• http://www.eecg.toronto.edu/~vaughn/papers/techrep.ps.Z is a 403 (forbidden)

[mithro]

vtr-verilog-to-routing/doc/src/z_references.bib

Line 93 in 81b5aa2

url = {http://www.eecg.toronto.edu/~vaughn/ papers/techrep.ps.Z},

[michael-etzkorn]

http://www.eecg.toronto.edu/~vaughn/ papers/techrep.ps.Z

Seems like this just needs to remove a space in " papers" and swap ps.Z with pdf

http://www.eecg.toronto.edu/~vaughn/papers/techrep.pdf

[umarcor]

This can be closed, since #1981 was merged.