[DOC] Update textCNN results

[xiaotinghe]

Description

Update textCNN results

Checklist

Essentials

• PR's title starts with a category (e.g. [BUGFIX], [MODEL], [TUTORIAL], [FEATURE], [DOC], etc)
• Changes are complete (i.e. I finished coding on this PR)
• All changes have test coverage
• Code is well-documented

Changes

• Update textCNN results

Comments

[codecov]

Codecov Report

Merging #737 into master will increase coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #737      +/-   ##
==========================================
+ Coverage   90.56%   90.58%   +0.02%     
==========================================
  Files          65       65              
  Lines        6071     6076       +5     
==========================================
+ Hits         5498     5504       +6     
+ Misses        573      572       -1

Impacted Files	Coverage Δ
src/gluonnlp/data/corpora/google_billion_word.py	66.66% <0%> (-8.34%)	⬇️
src/gluonnlp/data/utils.py	76.25% <0%> (-2.1%)	⬇️
src/gluonnlp/vocab/vocab.py	97.94% <0%> (ø)	⬆️
src/gluonnlp/data/dataloader.py	88.79% <0%> (+5.17%)	⬆️
...p/data/corpora/large_text_compression_benchmark.py	89.28% <0%> (+8.92%)	⬆️

[eric-haibin-lin]

could you fix lint?
/var/lib/jenkins/workspace/workspace/gluon-nlp-gpu-py3/docs/model_zoo/sentiment_analysis/index.rst:77:Blank line required after table.

[xiaotinghe]

done

[mli]

Job PR-737/2 is complete.
Docs are uploaded to http://gluon-nlp-staging.s3-accelerate.dualstack.amazonaws.com/PR-737/2/index.html

[mli]

Job PR-737/3 is complete.
Docs are uploaded to http://gluon-nlp-staging.s3-accelerate.dualstack.amazonaws.com/PR-737/3/index.html

[mli]

Job PR-737/4 is complete.
Docs are uploaded to http://gluon-nlp-staging.s3-accelerate.dualstack.amazonaws.com/PR-737/4/index.html

[yzh119]

Hi, I noticed a performance gap between previous results: https://github.com/dmlc/gluon-nlp/blob/5e1e7155517d0bed020b76357ff1bd77cedaf45d/scripts/sentiment_analysis/index.rst and results in this pr.
Could I know what causes the difference?

[astonzhang]

Hi, I noticed a performance gap between previous results: https://github.com/dmlc/gluon-nlp/blob/5e1e7155517d0bed020b76357ff1bd77cedaf45d/scripts/sentiment_analysis/index.rst and results in this pr.
Could I know what causes the difference?

We updated the data sets.