[OpenSIPS-Devel] [OpenSIPS/opensips] fac224: prometheus: fix typo in documentation

[Răzvan Crainea]

  Branch: refs/heads/master
  Home:   https://github.com/OpenSIPS/opensips
  Commit: fac2247c2916e307513b72eb27ea844d3fb86fcb
      https://github.com/OpenSIPS/opensips/commit/fac2247c2916e307513b72eb27ea844d3fb86fcb
  Author: Razvan Crainea <razvan at opensips.org>
  Date:   2021-02-25 (Thu, 25 Feb 2021)

  Changed paths:
    M modules/prometheus/doc/prometheus_admin.xml

  Log Message:
  -----------
  prometheus: fix typo in documentation