Sergej Lebedev bio info added

catalog/designers/sergejlebedev/bio.html

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+<p>Sergej Lebedev is a German type designer. He studied at the Trier University of Applied Sciences, where he successfully graduated in communication design. The main focus of his creative work is corporate design and type design. His goal is to create high-quality fonts which will serve as an excellent base for any design projects whether it be advertising, corporate design, graphic design and web design.</p>
+<p><a href="https://typedesigner.de">typedesigner.de</a></p>

catalog/designers/sergejlebedev/info.pb

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+designer: "Sergej Lebedev"
+link: ""
+avatar {
+  file_name: "sergejlebedev.png"
+}