Update README.md

Removed the comma after "Ethereum clients": This was to improve the sentence flow, as the comma was unnecessary in this context.

README.md

@@ -8,7 +8,7 @@ A minimal implementation of the Polynomial Commitments API for
 
 While the core implementation is in C, bindings are available for various
 high-level languages, providing convenient wrappers around C functions. These
-bindings are intended to be used by Ethereum clients, to avoid re-implementation
+bindings are intended to be used by Ethereum clients to avoid re-implementation
 of crucial cryptographic functions.
 
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