Add link to short examples

[gconnect]

• Some of the short examples does not have link
• Ensure consistency across all short examples

Some are like this
relations.domain_topic.ex.en = "computer science <ILIURL/68812>_ is a domain topic of CPU <ILIURL/51710>_ "

And some are like this
relations.antonym.ex.en = "Smart has antonym Stupid"