Currently HTML code of shields.io contains two `<title>` elements. This PR removes an extra title element.
Before change:
```bash
> curl https://shields.io -s | egrep "<title.*/title>" -o
<title class="next-head">Shields.io: Quality metadata badges for open source projects</title>
<title>My page</title>
```
After change:
```bash
> curl http://localhost:8080 -s | egrep "<title.*/title>" -o
<title class="next-head">Shields.io: Quality metadata badges for open source projects</title>
```
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