Grepping on comments
Scan for project files for the format 'TIP {id}:' and list the found items in
addition to the details.
Format should be:
{tip_num} ({tip_state}): {tip_title}\n
\n
{rest of the tip text}\n
\n
{file}:{line_num}:{line}\n
{file}:{line_num}:{line}\n
...