[wp-meta] [Making WordPress.org] #3123: Plugin Directory: Add "Requires PHP" header to readme standard

[Making WordPress.org]

#3123: Plugin Directory: Add "Requires PHP" header to readme standard
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 Reporter:  SergeyBiryukov            |       Owner:
     Type:  task                      |      Status:  new
 Priority:  normal                    |   Milestone:  Plugin Directory v3.0
Component:  Plugin Directory          |  Resolution:
 Keywords:  good-first-bug has-patch  |
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Comment (by xkon):

 After reading the slack chat on #meta since I was not able to be there
 yesterday ( sorry ! ) I saw some concerns for `<pre>`. In '''
 3123.6.diff''' I changed `<pre>` into using `text/plain` instead as
 suggested to avoid validation issues that might rise.

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Ticket URL: <https://meta.trac.wordpress.org/ticket/3123#comment:18>
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