Changed to self.opsdroid.send

[tctovsli]

Description

Fixes example in documentation.

Status

READY

Type of change

• Documentation (fix or adds documentation)

How Has This Been Tested?

Not tested.

Checklist:

• I have performed a self-review of my own code
• I have made corresponding changes to the documentation (if applicable)
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[codecov]

Codecov Report

Merging #1584 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1584   +/-   ##
=======================================
  Coverage   99.91%   99.91%           
=======================================
  Files          53       53           
  Lines        3335     3335           
=======================================
  Hits         3332     3332           
  Misses          3        3           

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[FabioRosado]

Hello @tctovsli thank you for opening this PR and spotting the issue on the documentation. I guess when we changed things with the class based skills some things got forgotten like this one. 👍