docs(isEqual): add object comparison to example (#395)

Author: teooliver

docs/typed/isEqual.mdx

@@ -13,6 +13,7 @@ import * as _ from 'radashi'
 
 _.isEqual(null, null) // => true
 _.isEqual([], []) // => true
+_.isEqual({ hello: 'world' }, { hello: 'world' }) // => true
 
 _.isEqual('hello', 'world') // => false
 _.isEqual(22, 'abc') // => false