Merge pull request #10 from pecorasilenzio/task#category

show category
create dummy data
Merge pull request #8 from framgianguyenbui/create_data_sample

Create data sample
update category & stylesheet
Merge branch 'develop' of https://github.com/framgia/fels_8 into develop
export pdf
Merge pull request #11 from framgianguyenbui/exportpdf

Exportpdf
Merge branch 'develop' of https://github.com/framgia/fels_8 into develop
update category & stylesheet