Fix typo in docs

[CsterKuroi]

No description provided.

[codecov-io]

Codecov Report

Merging #1447 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1447   +/-   ##
=======================================
  Coverage   98.37%   98.37%           
=======================================
  Files          56       56           
  Lines        2592     2592           
=======================================
  Hits         2550     2550           
  Misses         42       42

[TimDaub]

@CsterKuroi Thanks :)

[ttmc]

It's a small change to the docs, so I feel silly asking this, but...

The BigchainDB docs are licensed under a Commons Attribution-ShareAlike 4.0 International license, the full text of which can be found at http://creativecommons.org/licenses/by-sa/4.0/legalcode

@CsterKuroi Do you agree to have your contribution licensed under that license? If so, can you send an email to troy@bigchaindb.com containing your full name and the following random string?

2xfY0oDKz5K35YBbqwbb3VkofsPDaDAg8Vm0Jn0x3uC55eIqKT3I6C1mdHCcuEL

(This lets us tie your GitHub account to a name and email address, so we know who to contact in case licensing issues arise. We will keep those private: we won't share them outside of our company.)

[ttmc]

I received the necessary email so I'll merge this pull request now.