Add ; in readme for Line 35

[alirezarpi]

Describe the bug

Didn't know if here is the best place, but anyways.
Please update readme line 35

* If you override the default `nginx.conf` file you may receive the message `nginx: [emerg] open() "/var/run/nginx.pid" failed (13: Permission denied)`, in this case you have to add the line `pid /tmp/nginx.pid` into your config.

as follows

* If you override the default `nginx.conf` file you may receive the message `nginx: [emerg] open() "/var/run/nginx.pid" failed (13: Permission denied)`, in this case you have to add the line `pid /tmp/nginx.pid;` into your config.

You have missing ; at the end of the line.

To reproduce

Expected behavior

pid /tmp/nginx.pid;

Your environment

Additional context