Improved grammar and typos

[falconcode16]

Description

Fixes #

Status

READY

Type of change

• Documentation (fix or adds documentation)

How Has This Been Tested?

• Test A
• Test B

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 #1889 (6096a17) into master (4ac4464) will increase coverage by 0.00%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1889   +/-   ##
=======================================
  Coverage   99.37%   99.37%           
=======================================
  Files          83       83           
  Lines        5086     5107   +21     
=======================================
+ Hits         5054     5075   +21     
  Misses         32       32           

Impacted Files	Coverage Δ
opsdroid/parsers/witai.py	100.00% <0.00%> (ø)
opsdroid/parsers/rasanlu.py	100.00% <0.00%> (ø)
opsdroid/connector/slack/connector.py	100.00% <0.00%> (ø)

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[Cadair]

Thanks for the PR, a few small tweaks but looks like a good improvement.

[stale]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.