Update app.py

app.py

@@ -106,7 +106,7 @@ DESCRIPTION = '''
 <h1 style="text-align: center;">Microscopic Mineral Identification App</h1>
 <p>Welcome to our interactive space dedicated to identifying minerals through microscopic imagery. This platform showcases various microscopic images that reveal the intricate patterns and characteristics of different minerals. To get started, you can explore our collection of mineral images or use your own to identify key features such as crystal structure, color variations, and inclusions.</p>
 <p>🔎 For a deeper understanding of mineral identification techniques and how to analyze microscopic mineral images, visit our comprehensive <a href="https://example.com/mineral-guide">mineral guide</a>. It provides insights into common mineralogical features and how to recognize them.</p>
-<p>🧪 Interested in more advanced mineralogy? Check out our <a href="https://example.com/advanced-mineralogy"><b>Advanced Mineralogy</b></a> section, where we dive into more complex mineral structures and analytical methods.</p>
+<p>🧪 Interested in more advanced mineralogy? Check Mindat which can provide more details about the mineral identified <a href="https://www.mindat.org/"><b>Mindat.org</b></a> section, where we dive into more complex mineral structures and analytical methods.</p>
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