Fix some formatting issues in new documentation

docs/usage/limitations.md

@@ -35,4 +35,4 @@ Forbidden headers include:
 The biggest impact of this is that OpenAPI 3.0 Cookie parameters cannot be
 controlled when running Swagger-UI in a browser.
 
-_For more context, see [#3956](https://github.com/swagger-api/swagger-ui/issues/3956).
+For more context, see [#3956](https://github.com/swagger-api/swagger-ui/issues/3956).

docs/usage/version-detection.md

@@ -9,7 +9,7 @@ To help you visually detect which version you're using, we've included supportin
 
 # Swagger-UI 3.X
 
-![Swagger-UI 3](/images/swagger-ui3.png)
+![Swagger-UI 3](/docs/images/swagger-ui3.png)
 
 Some distinct identifiers to Swagger-UI 3.X:
 - The API version appears as a badge next to its title.
@@ -29,7 +29,7 @@ Note: This functionality was added in 3.0.8. If you're unable to execute it, you
 
 # Swagger-UI 2.X and under
 
-![Swagger-UI 2](/images/swagger-ui2.png)
+![Swagger-UI 2](/docs/images/swagger-ui2.png)
 
 Some distinct identifiers to Swagger-UI 3.X:
 - The API version appears at the bottom of the page.