improve search

[VladimirAlexiev]

(originally sindresorhus/awesome#1976)
@lockys and @John-Lin:
Frankly I don't understand the search at https://awesomelists.top

• I search for "Kafka" and the first hit is https://awesomelists.top/#/repos/adafruit/awesome-adafruitio.
  But it doesn't even contain that word!
• It should return https://awesomelists.top/#repos/onurakpolat/awesome-bigdata where Kafka appears 19 times,
  or https://awesomelists.top/#repos/manuzhang/awesome-streaming where Kafka appears 8 times.

Cheers!