Update impl/README.md

Co-authored-by: Ricardo Zanini <[email protected]>

Author: fjtirado

impl/README.md

@@ -93,7 +93,7 @@ implementation("io.serverlessworkflow:serverlessworkflow-impl-http:7.0.0-SNAPSHO
 
 The quick version is intended for impatient users who want to try something as soon as possible.
 
-Detailed version is more suitable for those users interested on a more thoughtful discussion of the API.
+The detailed version is more suitable for those users interested in a more thoughtful discussion of the API.
 
 ### Quick version