update gubrak tagline (#1964)

Please check if what you want to add to `awesome-go` list meets [quality standards](https://github.com/avelino/awesome-go/blob/master/CONTRIBUTING.md#quality-standard) before sending pull request. Thanks!

**Please provide package links to:**

- github.com repo: https://github.com/novalagung/gubrak
- godoc.org: https://godoc.org/github.com/novalagung/gubrak
- goreportcard.com: [![Go Report Card](https://goreportcard.com/badge/github.com/novalagung/gubrak?nocache=1)](https://goreportcard.com/report/github.com/novalagung/gubrak?nocache=1)
- coverage service link: [![cover.run](https://cover.run/go/github.com/novalagung/gubrak.svg?style=flat&tag=golang-1.10)](https://cover.run/go?tag=golang-1.10&repo=github.com%2Fnovalagung%2Fgubrak)




Very good coverage

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**Make sure that you've checked the boxes below before you submit PR:**
- [✓] I have added my package in alphabetical order.
- [✓] I have an appropriate description with correct grammar.
- [✓] I know that this package was not listed before.
- [✓] I have added godoc link to the repo and to my pull request.
- [✓[ ] I have added coverage service link to the repo and to my pull request.
- [✓] I have added goreportcard link to the repo and to my pull request.
- [✓] I have read [Contribution guidelines](https://github.com/avelino/awesome-go/blob/master/CONTRIBUTING.md#contribution-guidelines), [maintainers note](https://github.com/avelino/awesome-go/blob/master/CONTRIBUTING.md#maintainers) and [Quality standard](https://github.com/avelino/awesome-go/blob/master/CONTRIBUTING.md#quality-standard).

Thanks for your PR, you're awesome! 👍

README.md

@@ -1384,7 +1384,7 @@ See [go-hardware](https://github.com/rakyll/go-hardware) for a comprehensive lis
 * [gpath](https://github.com/tenntenn/gpath) - Library to simplify access struct fields with Go's expression in reflection.
 * [grequests](https://github.com/levigross/grequests) - Elegant and simple `net/http` wrapper that follows Python's requests library.
 * [gron](https://github.com/roylee0704/gron) - Define time-based tasks using a simple Go API and Gron’s scheduler will run them accordingly.
-* [gubrak](https://gubrak.github.io/) - Golang utility library with syntactic sugar.
+* [gubrak](https://gubrak.github.io/) - Golang utility library with syntactic sugar. It's like lodash, but for golang.
 * [htcat](https://github.com/htcat/htcat) - Parallel and Pipelined HTTP GET Utility.
 * [httpcontrol](https://github.com/facebookgo/httpcontrol) - Package httpcontrol allows for HTTP transport level control around timeouts and retries.
 * [hub](https://github.com/github/hub) - wrap git commands with additional functionality to interact with github from the terminal.