[website] Fix h2 being weirdly pushed to the left
[website] Fix h2 being weirdly pushed to the left

Context http://jsonnet.org/articles/design.html

sparkprime/jsonnet,google/jsonnet,google/jsonnet,google/jsonnet,google/jsonnet,sparkprime/jsonnet,google/jsonnet,sparkprime/jsonnet,sparkprime/jsonnet,sparkprime/jsonnet,google/jsonnet,sparkprime/jsonnet