docs: modify javascripte usage link in README.md (#179)
docs: modify javascripte usage link in README.md (#179)

Because the link of javascript usage was wrong, it is correct to be changed to #javascript.

Signed-off-by: Sangwon Hong <78db7273bea9f1fe8c8df5e71e27a09754c02420@gmail.com>
ipfs/interface-ipfs-core