MINOR: [Ruby] Fix wrong English

[wilhelmagren]

Change "There are the [...]" to "These are the [...]". Incorrect wording in previous README.

[github-actions]

Thanks for opening a pull request!

If this is not a minor PR. Could you open an issue for this pull request on JIRA? https://issues.apache.org/jira/browse/ARROW

Opening JIRAs ahead of time contributes to the Openness of the Apache Arrow project.

Then could you also rename pull request title in the following format?

ARROW-${JIRA_ID}: [${COMPONENT}] ${SUMMARY}

or

MINOR: [${COMPONENT}] ${SUMMARY}

See also:

• Other pull requests
• Contribution Guidelines - How to contribute patches

[kou]

+1

[ursabot]

Benchmark runs are scheduled for baseline = 7a0ba80 and contender = 23c5cee. 23c5cee is a master commit associated with this PR. Results will be available as each benchmark for each run completes.
Conbench compare runs links:
[Finished ⬇️0.0% ⬆️0.0%] ec2-t3-xlarge-us-east-2
[Failed] test-mac-arm
[Failed ⬇️0.82% ⬆️0.0%] ursa-i9-9960x
[Finished ⬇️0.39% ⬆️0.0%] ursa-thinkcentre-m75q
Buildkite builds:
[Finished] 23c5ceea ec2-t3-xlarge-us-east-2
[Failed] 23c5ceea test-mac-arm
[Failed] 23c5ceea ursa-i9-9960x
[Finished] 23c5ceea ursa-thinkcentre-m75q
[Finished] 7a0ba807 ec2-t3-xlarge-us-east-2
[Failed] 7a0ba807 test-mac-arm
[Failed] 7a0ba807 ursa-i9-9960x
[Finished] 7a0ba807 ursa-thinkcentre-m75q
Supported benchmarks:
ec2-t3-xlarge-us-east-2: Supported benchmark langs: Python, R. Runs only benchmarks with cloud = True
test-mac-arm: Supported benchmark langs: C++, Python, R
ursa-i9-9960x: Supported benchmark langs: Python, R, JavaScript
ursa-thinkcentre-m75q: Supported benchmark langs: C++, Java

[ursabot]

['Python', 'R'] benchmarks have high level of regressions.
ursa-i9-9960x