search form

its reading bad 

```
User sign up
  returns only matched projects
    searches for 'test' in projects
    display all results for empty input search
```
last do not fit parent description, then only one left there it should be more like
```
describe "User sign up", js: true do
  it "return only mached projects when project name provided"
  it "return all projects when empty string provided"
```
smt like that it must be easy to read on all levels