Improve headings in Python SDK installation section.

diff --git a/doc/sdk/python/sdk-python.html.textile.liquid b/doc/sdk/python/sdk-python.html.textile.liquid
index 97d5a39728cad525771d4696df165ab068dfbc39..da363465fd335bb2f01e181c4d2c80924f99a2f4 100644 (file)
--- a/doc/sdk/python/sdk-python.html.textile.liquid
+++ b/doc/sdk/python/sdk-python.html.textile.liquid
@@ -18,7 +18,7 @@ If you are logged in to an Arvados VM, the Python SDK should be installed.
 
 To use the Python SDK elsewhere, you can either install the Python SDK via PyPI or build and install the package using the arvados source tree.
 
-h4. Install with PyPI
+h4. Option 1: install with PyPI
 
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 <pre>
@@ -26,7 +26,7 @@ $ <code class="userinput">pip install arvados-python-client</code>
 </pre>
 </notextile>
 
-h4. Build and install from source
+h4. Option 2: build and install from source
 
 <notextile>
 <pre>
@@ -37,6 +37,8 @@ $ <code class="userinput">sudo python setup.py install</code>
 </pre>
 </notextile>
 
+h4. Test installation
+
 If the SDK is installed and your @ARVADOS_API_HOST@ and @ARVADOS_API_TOKEN@ environment variables are set up correctly (see "api-tokens":{{site.basedoc}}/user/reference/api-tokens.html for details), @import arvados@ should produce no errors:
 
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