[tbb-bugs] #18099 [Tor Browser]: Update MAR key generation instructions

[Tor Bug Tracker & Wiki]

#18099: Update MAR key generation instructions
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     Reporter:  gk           |      Owner:  tbb-team
         Type:  enhancement  |     Status:  new
     Priority:  Medium       |  Milestone:
    Component:  Tor Browser  |    Version:
     Severity:  Normal       |   Keywords:
Actual Points:               |  Parent ID:
       Points:               |    Sponsor:
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 While creating a new MAR signing key I realized the current instructions
 have some typos and copy and paste failures. We should fix them.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18099>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online