feat: change desc

Author: wb-hjd377385

implementations.md

@@ -62,7 +62,7 @@ The "Promise Objects" section of the ECMAScript specification has many additiona
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             <td><a href="https://github.com/skyline-123/bPromise">bPromise</a></td>
-            <td>A simple Promises/A+ implementation in browser.</td>
+            <td>A simple Promises/A+ implementation for learning.</td>
             <td>1.1</td>
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