doc: clarify docs for sending data via streaming inserts

[stephaniewang526]

migrate PR #6216 from google-cloud-java

[codecov]

Codecov Report

Merging #190 into master will decrease coverage by 0.12%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #190      +/-   ##
============================================
- Coverage     77.35%   77.23%   -0.13%     
+ Complexity     1114     1113       -1     
============================================
  Files            73       73              
  Lines          5967     5939      -28     
  Branches        650      626      -24     
============================================
- Hits           4616     4587      -29     
+ Misses         1025     1022       -3     
- Partials        326      330       +4

Impacted Files	Coverage Δ	Complexity Δ
...va/com/google/cloud/bigquery/InsertAllRequest.java	86.25% <ø> (ø)	23 <0> (ø)	⬇️
...com/google/cloud/bigquery/StandardSQLDataType.java	73.68% <0%> (-1.32%)	7% <0%> (ø)
...m/google/cloud/bigquery/StandardSQLStructType.java	84.61% <0%> (-1.1%)	5% <0%> (ø)
...ogle/cloud/bigquery/WriteChannelConfiguration.java	85.43% <0%> (-0.69%)	44% <0%> (ø)
...ava/com/google/cloud/bigquery/RoutineArgument.java	85.71% <0%> (-0.65%)	5% <0%> (ø)
...om/google/cloud/bigquery/LoadJobConfiguration.java	89.64% <0%> (-0.52%)	52% <0%> (ø)
...google/cloud/bigquery/ExternalTableDefinition.java	56.38% <0%> (-0.46%)	16% <0%> (ø)
...va/com/google/cloud/bigquery/StandardSQLField.java	90.47% <0%> (-0.44%)	7% <0%> (ø)
...java/com/google/cloud/bigquery/ViewDefinition.java	87.09% <0%> (-0.41%)	11% <0%> (ø)
...a/com/google/cloud/bigquery/InsertAllResponse.java	88.88% <0%> (-0.31%)	15% <0%> (ø)
... and 12 more

---

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Δ = absolute <relative> (impact), ø = not affected, ? = missing data
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[codecov]

Codecov Report

Merging #190 into master will decrease coverage by 0.12%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #190      +/-   ##
============================================
- Coverage     77.35%   77.23%   -0.13%     
+ Complexity     1114     1113       -1     
============================================
  Files            73       73              
  Lines          5967     5939      -28     
  Branches        650      626      -24     
============================================
- Hits           4616     4587      -29     
+ Misses         1025     1022       -3     
- Partials        326      330       +4

Impacted Files	Coverage Δ	Complexity Δ
...va/com/google/cloud/bigquery/InsertAllRequest.java	86.25% <ø> (ø)	23 <0> (ø)	⬇️
...com/google/cloud/bigquery/StandardSQLDataType.java	73.68% <0%> (-1.32%)	7% <0%> (ø)
...m/google/cloud/bigquery/StandardSQLStructType.java	84.61% <0%> (-1.1%)	5% <0%> (ø)
...ogle/cloud/bigquery/WriteChannelConfiguration.java	85.43% <0%> (-0.69%)	44% <0%> (ø)
...ava/com/google/cloud/bigquery/RoutineArgument.java	85.71% <0%> (-0.65%)	5% <0%> (ø)
...om/google/cloud/bigquery/LoadJobConfiguration.java	89.64% <0%> (-0.52%)	52% <0%> (ø)
...google/cloud/bigquery/ExternalTableDefinition.java	56.38% <0%> (-0.46%)	16% <0%> (ø)
...va/com/google/cloud/bigquery/StandardSQLField.java	90.47% <0%> (-0.44%)	7% <0%> (ø)
...java/com/google/cloud/bigquery/ViewDefinition.java	87.09% <0%> (-0.41%)	11% <0%> (ø)
...a/com/google/cloud/bigquery/InsertAllResponse.java	88.88% <0%> (-0.31%)	15% <0%> (ø)
... and 12 more

---

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 93e61f8...ec28e98. Read the comment docs.