added glibc patch for log2p1

public/index.html

@@ -228,7 +228,7 @@ Available CORE-MATH functions (under MIT license):
     <td></td></tr>
 <tr><td>log2p1</td>
     <td><a href="https://gitlab.inria.fr/core-math/core-math/-/blob/master/src/binary32/log2p1/log2p1f.c">code</a></td>
-    <td><a href="https://gitlab.inria.fr/core-math/core-math/-/blob/master/src/binary64/log2p1/log2p1.c">code</a></td>
+    <td><a href="https://gitlab.inria.fr/core-math/core-math/-/blob/master/src/binary64/log2p1/log2p1.c">code</a> <a href="https://github.com/sbnh1/glibc/tree/log2p1">glibc patch</a></td>
     <td></td>
     <td></td></tr>
 <tr><td>pow</td>