updating swiftlint content (#6073)

* updating swiftlint content

* making code review changes

adding standard line and removing installation instructions

Co-authored-by: dsh <daniel.s.holdsworth@gmail.com>

* Update src/data/roadmaps/ios/content/swiftlint@NnTC3R8goZQTXHmfHKHbM.md

---------

Co-authored-by: dsh <daniel.s.holdsworth@gmail.com>

src/data/roadmaps/ios/content/swiftlint@NnTC3R8goZQTXHmfHKHbM.md

@@ -1 +1,8 @@
-# SwiftLint
+# SwiftLint
+
+SwiftLint is an open-source tool developed by Realm, that facilitates maintaining standardized code development by enabling the definition and enforcement of project-specific conventions and guidelines. It ensures developers adhere to these standards, thereby promoting organized code practices.
+
+Learn more from the following resources:
+
+- [@official@SwiftLint Documentation](https://github.com/realm/SwiftLint)
+- [@video@Mastering SwiftLint for Code Readability](https://www.youtube.com/watch?v=4YQ6DJ-xovY)