edit  intro_2
update log book
update burndownchart
EDIT INDEX & BURNDOWN CHART
Merge branch 'master' of https://github.com/ryan-saragih/AERO_7_TKPPL
Merge branch 'master' of https://github.com/ryan-saragih/AERO_7_TKPPL
tambah gambar & 1971
Merge pull request #4 from mahouShounen/master

1971