✏️ Fix discussion text

Author: siguici

README.md

@@ -37,7 +37,7 @@ using [Composer](https://getcomposer.org/):
 
 ### 💬 Discussions
 
-Larger discussions and proposals are discussed in [**siguici's discussions**][discuss-link].
+Larger discussions and proposals are discussed in [**Sikessem's discussions**][discuss-link].
 
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