[MacPorts] #55448: MacPorts guide makes no mention of livecheck built-in functionality for github

[MacPorts]

#55448: MacPorts guide makes no mention of livecheck built-in functionality for
github
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 Reporter:  emcrisostomo  |      Owner:
     Type:  defect        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  guide         |    Version:
 Keywords:                |       Port:
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 While updating the sysutils/fswatch port, I decided to add the livecheck
 configuration. I searched the guide (section 5.8) to see whether there was
 some builtin functionality for github but the only mentions I found are
 referring to mirror sites (freecode.com, sourceforge.net,
 /code.google.com). A search came up with the following MacPorts ticket:

 https://trac.macports.org/ticket/53940

 As suggested in this ticket, I tried to simply add the following line to
 the Portfile and it appears to be working fine:

 livecheck.url   ${github.homepage}/releases/latest

 Shouldn't the guide be updated in order to reflect this feature? I believe
 this is an important feature, given the relevance of Github nowadays.

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Ticket URL: <https://trac.macports.org/ticket/55448>
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