fix(docs): duplicate readme sample names

[laljikanjareeya]

Fixes #505

[codecov]

Codecov Report

Merging #512 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #512   +/-   ##
=======================================
  Coverage   99.42%   99.42%           
=======================================
  Files           5        5           
  Lines         698      698           
  Branches      192      192           
=======================================
  Hits          694      694           
  Misses          3        3           
  Partials        1        1

---

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 e502df2...8223616. Read the comment docs.

[bcoe]

@laljikanjareeya this table actually get auto generated from meta information in the samples/ folder, if you update the title: stanza in the corresponding sample files, the nightly synthtool job should fix up the table for you, see:

nodejs-bigquery/samples/updateModel.js

Line 20 in 06f5981

// title: BigQuery Update Model

[AVaksman]

Seems need to change title from "BigQuery Update Model" to an appropriate one in
Delete Label Dataset
Get Dataset Labels
BigQuery Get Table
Get Table Labels
BigQuery Label Dataset