Update index.html

Author: xh9998

index.html

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             <span style="color: #EA4335;">D</span><span style="color: #4285F4;">iff</span><span style="color: #FBBC05;">V</span><span style="color: #34A853;">SR</span>
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-            <span style="color: #EA4335;">D</span><span style="color: #4285F4;">iff</span><span style="color: #FBBC05;">V</span><span style="color: #34A853;">SR</span>: Revealing an Effective Recipe for Taming
+            <span style="color: #FF3E3E;">D</span><span style="color: #FF914D;">i</span><span style="color: #FFC94D;">f</span><span style="color: #B6E24D;">f</span><span style="color: #4DDC95;">V</span><span style="color: #4DB8FF;">S</span><span style="color: #8564FF;">R</span>: Revealing an Effective Recipe for Taming
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           <h1 class="title is-2 publication-title"> 
             Robust Video Super-Resolution Against Complex Degradations