Fix logo in README.
-<img src="https://raw.githubusercontent.com/Orange-OpenSource/hurl/master/docs/logo-dark.svg?sanitize=true#gh-dark-mode-only" alt="Hurl Logo" width="264px"><img src="https://raw.githubusercontent.com/Orange-OpenSource/hurl/master/docs/logo-light.svg?sanitize=true#gh-light-mode-only" alt="Hurl Logo" width="264px"">
+<img src="https://raw.githubusercontent.com/Orange-OpenSource/hurl/master/docs/logo-dark.svg?sanitize=true#gh-dark-mode-only" alt="Hurl Logo" width="264px"><img src="https://raw.githubusercontent.com/Orange-OpenSource/hurl/master/docs/logo-light.svg?sanitize=true#gh-light-mode-only" alt="Hurl Logo" width="264px">
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