Use updated docs link on install page

[techknowlogick]

Fix #4665

[codecov-io]

Codecov Report

Merging #4668 into master will decrease coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #4668      +/-   ##
==========================================
- Coverage   20.63%   20.62%   -0.01%     
==========================================
  Files         166      166              
  Lines       32262    32262              
==========================================
- Hits         6657     6654       -3     
- Misses      24627    24629       +2     
- Partials      978      979       +1

Impacted Files	Coverage Δ
modules/process/manager.go	69.56% <0%> (-4.35%)	⬇️

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[jonasfranz]

LGTM