MINOR: [Doc] Fix minor typo on conda-recipes README

[raulcd]

Minor typo fix

[ursabot]

Benchmark runs are scheduled for baseline = bda98aa and contender = 29225ac. 29225ac 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 ⬇️0.44% ⬆️0.1%] test-mac-arm
[Failed ⬇️0.28% ⬆️0.0%] ursa-i9-9960x
[Finished ⬇️0.25% ⬆️0.04%] ursa-thinkcentre-m75q
Buildkite builds:
[Finished] 29225acc ec2-t3-xlarge-us-east-2
[Failed] 29225acc test-mac-arm
[Failed] 29225acc ursa-i9-9960x
[Finished] 29225acc ursa-thinkcentre-m75q
[Finished] bda98aab ec2-t3-xlarge-us-east-2
[Finished] bda98aab test-mac-arm
[Failed] bda98aab ursa-i9-9960x
[Finished] bda98aab 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