[release/7.0-rc2] Fix wasm template README #75766
                
     Merged
            
            
          
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Backport of #75696 to release/7.0-rc2
/cc @pavelsavara @yamachu
Customer Impact
Testing
Risk
IMPORTANT: Is this backport for a servicing release? If so and this change touches code that ships in a NuGet package, please make certain that you have added any necessary package authoring and gotten it explicitly reviewed.