worked on structure test
Merge branch 'master' of https://github.com/neelk07/OAA
updated landmark rules
Merge branch 'master' of https://github.com/neelk07/OAA

Conflicts:
	Structure/heading_1.html
	Structure/heading_10.html
	Structure/heading_11.html
	Structure/heading_12.html
	Structure/heading_13.html
	Structure/heading_14.html
	Structure/heading_15.html
	Structure/heading_16.html
	Structure/heading_17.html
	Structure/heading_18.html
	Structure/heading_19.html
	Structure/heading_2.html
	Structure/heading_20.html
	Structure/heading_21.html
	Structure/heading_3.html
	Structure/heading_4.html
	Structure/heading_5.html
	Structure/heading_6.html
	Structure/heading_7.html
	Structure/heading_8.html
	Structure/heading_9.html
	Structure/index.html
	Structure/landmark_10.html
	Structure/landmark_4.html
	Structure/landmark_5.html
	Structure/landmark_6.html
	Structure/landmark_7.html
	Structure/landmark_8.html
	Structure/landmark_9.html
updated landmark