Update index.md (#332)

docs/blog/use-case/index.md

@@ -174,7 +174,7 @@ Say you have 82.35% testing code coverage, are you happy and feeling confident t
 
 Use-cases simplifies the coverage coverage digest: when looking directly into the use-cases folder, one gets *'features coverage'*, a unique look into which user features and steps lack testing:
 
-![Use case coverage](./use-case-coverage.PNG)
+![Use case coverage](./use-case-coverage.png)
 *The use-cases folder test coverage report, some use-cases are only partially tested*
 
 See how the code above has an excellent overall coverage, 82.35%. But what about the remaining 17.65% code? Looking at the report triggers a red flag: the unusual 'payment-use-case' is not tested. This flow is where revenues are generated, a critical financial process which as turns out has a very low test coverage. This significant observation calls for immediate actions. Use-case coverage thus not only helps in understanding what parts of your application are tested but also prioritizes testing efforts based on business criticality rather than mere technical functionality.
@@ -332,4 +332,4 @@ If you find it valuable, you'll also get great return for your modest investment
 
 Once you become accustomed to using it, you’ll find that this technique extends well beyond API routes. It’s equally beneficial for managing message queues subscriptions and scheduled jobs. Backend-aside, use it as the facade of every module or library - the code that is being called by the entry file and orchestrates the internals. The same idea can be applied in Frontend as well: declare the core actors at the component top level. Without implementation details, just put the reference to the component's event handlers and hooks - now the reader knows about the key events that will drive this component.
 
-You might think this all sounds remarkably straightforward—and it is. My apologies, this article wasn't about cutting-edge technologies. Neither did it cover shiny new dev toolings or AI-based rocket-science. In a land where complexity is the key enemy, simple ideas can be more impactful than sophisticated tooling and the Use-case is a powerful and sweet pattern that meant to live in every piece of software.
+You might think this all sounds remarkably straightforward—and it is. My apologies, this article wasn't about cutting-edge technologies. Neither did it cover shiny new dev toolings or AI-based rocket-science. In a land where complexity is the key enemy, simple ideas can be more impactful than sophisticated tooling and the Use-case is a powerful and sweet pattern that meant to live in every piece of software.