adds x-client-id header to example curl in docco

[sming]

addresses add x-client-id to markdown documentation examples for /query/...

[codecov[bot]]

Codecov Report

Merging #766 (82b6e32) into master (c6b5a6f) will not change coverage. The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #766   +/-   ##
=========================================
  Coverage     55.21%   55.21%           
  Complexity     3176     3176           
=========================================
  Files           751      751           
  Lines         20544    20544           
  Branches       1343     1343           
=========================================
  Hits          11343    11343           
  Misses         8715     8715           
  Partials        486      486           

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update c6b5a6f...82b6e32. Read the comment docs.