UW-626 Update developer_setup.rst documentation with IDE troubleshoot…

…ing (#513)

Added language for VS Code Python interpreter troubleshooting to the developer setup docs.

docs/sections/contributor_guide/developer_setup.rst

@@ -31,6 +31,8 @@ Future ``make devshell`` invocations will be almost instantaneous, as the underl
 
 If your development shell misses any functionality you’re used to in your main (``bash``) shell, you can create a ``~/.condevrc`` file, which will be sourced by ``make devshell``, and add desired environment-setup commands to it.
 
+If using an IDE such as VS Code, ensure that the correct Python interpreter belonging to the conda environment providing uwtools is selected. In VS Code, this can be changed by using the Command Palette and searching "Python: Select Interpreter".
+
 Using a ``bash`` Development Shell
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