add project euler profile badge

eulerbooks/eulerbooks.html

@@ -15,6 +15,7 @@
 		</header>
 		<main>
 			<article>
+				<img id="euler-badge" src="https://projecteuler.net/profile/filifa.png" alt="a badge showing filifa's up-to-date Project Euler statistics (solved 168 as of 2025-07-27)" width="200px" height="60px"/>
 				<h1 id="eulerbooks">Eulerbooks</h1>
 				<p>This is a collection of Jupyter notebooks containing solutions and
 				discussions for the first 100 <a

styles/eulerbooks.css

@@ -18,3 +18,7 @@ tr :nth-child(1) {
 tr :nth-child(4) {
 	width: 20%;
 }
+
+#euler-badge {
+	float: right;
+}