readtheorg timestamps in navbar are unreadable

[Patric Carman]

If one includes a date in a heading, it becomes unreadable in the navigation bar. In org,

* Foo <2018-03-19>
Bar
* Bang <2018-03-20>
Bazz

shows up as unreadable.

If we change the style sheet so it has

.nav .timestamp {
    color: inherit;
}

then the date becomes much more readable:

I will submit a pull request about this.

[Shlomi Vaknin]

Not sure if you know this, but you can add css directives in your org.

In your case, you could simply add:
#+HTML_HEAD: <style>.nav .timestamp {color: inherit;}</style>
to your org file!

No PR needed :)