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-Arvados CLI tools are written in Ruby and Python. To use the @arv@ command, you can either install the @arvados-cli@ gem via RubyGems or build and install the package from source. The @arv@ command also relies on other Arvados tools, you can either install the @arvados-python-client@ and @arvados-cwl-runner@ from PyPi or install the packages from source.
+Arvados CLI tools are written in Ruby and Python. To use the @arv@ command, you can either install the @arvados-cli@ gem via RubyGems or build and install the package from source. The @arv@ command also relies on other Arvados tools. To get those, you can either install the @arvados-python-client@ and @arvados-cwl-runner@ from PyPI or install the packages from source.
h3. Prerequisites: Ruby, Bundler, and curl libraries
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-h3. Option 1: Install from RubyGems and PyPi
+h3. Option 1: Install from RubyGems and PyPI
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