[GitHub] [spark] HyukjinKwon commented on a change in pull request #27534: [SPARK-30879][DOCS] Refine workflow for building docs

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HyukjinKwon commented on a change in pull request #27534: [SPARK-30879][DOCS] Refine workflow for building docs
URL: https://github.com/apache/spark/pull/27534#discussion_r387406314
 
 

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 File path: docs/README.md
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 @@ -31,15 +31,41 @@ whichever version of Spark you currently have checked out of revision control.
 The Spark documentation build uses a number of tools to build HTML docs and API docs in Scala, Java,
 Python, R and SQL.
 
-You need to have [Ruby](https://www.ruby-lang.org/en/documentation/installation/) and
-[Python](https://docs.python.org/2/using/unix.html#getting-and-installing-the-latest-version-of-python)
-installed. Also install the following libraries:
+You need to have Ruby 2 and Python 3 installed. A handy way to install and manage various versions of Ruby and Python is with [`rbenv`] and [`pyenv`].
 
 Review comment:
   I think docker changes are fine.

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