Signature of a hacking attempt?
Using Jamroom
no.
Its someone looking to see if you have a GIT repository on your server.
Anyone can type in any address they like to your site to see if it exists, its not hacking, its just asking a question
yoursite.com/do-you-like-avacardos
yoursite.com/my-favorite-color-is-green
It does nothing to your server, your server just replies: 404 page not found. and thats the end of it.
--edit--
a common one you will see is something like
yoursite.com/wp-admin/
they are testing to see if your site is wordpress. if it is then they will start checking all the recorded wordpress vulnerabilities
updated by @michael: 07/07/18 05:19:03AM