Fix links to tests for real now

Markdown doesn't like spaces in links, but replacing them with '%20' should work.

Author: klianc09

README.md

@@ -139,8 +139,8 @@ I'm looking for feedbacks to report and get fixed as much bugs as possible, don'
 
 To check what has been already ported and working, simply run one of the tests in Kotlin:
 
-- [lwjgl](https://github.com/kotlin-graphics/imgui/blob/master/src/test/kotlin/imgui/test lwjgl.kt) 
-- [jogl](https://github.com/kotlin-graphics/imgui/blob/master/src/test/kotlin/imgui/test jogl.kt)
+- [lwjgl](https://github.com/kotlin-graphics/imgui/blob/master/src/test/kotlin/imgui/test%20lwjgl.kt) 
+- [jogl](https://github.com/kotlin-graphics/imgui/blob/master/src/test/kotlin/imgui/test%20jogl.kt)
 
 or in Java: