config-project-config: Fix indentation of option descriptions
config-project-config: Fix indentation of option descriptions

The whole explanation text for an option should be indented, but for
some options only the first paragraph was indented. To fix this we are
using the '+' character as a newline to separate the paragraphs. This
makes the indentation apply to all paragraphs.

Signed-off-by: Edwin Kempin <d43fb6c98c97e553b671ed9a9318100f1de386e7@google.com>
Change-Id: I253b90d09c3d85062d06f46f266507dbec18dc2a

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