User input values.
Minor formatting
Fixing minor formatting.
Key consistency.
Copy-and-paste friendliness.

Support copying and pasting the `..code-block` sections right into a new document.
Right, not using Markdown.

That'll teach me to skip the "preview" button.
Add missing "code-blocks" sections in compute.
Merge pull request #37 from smashwilson/missing-blocks-compute

Add missing "code-blocks" sections in compute samples.
Added Python database sample code.
Fixed two files that didn't merge properly.
Added language blocks to the .rst docs.