Fix compose web examples source code links (#1006)

* Fix web landing link

* Fix falling balls source code link

examples/web-landing/src/jsMain/kotlin/com/sample/content/GetStartedSection.kt

@@ -32,7 +32,7 @@ private fun getCards(): List<GetStartedCardPresentation> {
             links = listOf(
                 LinkOnCard(
                     linkText = "Explore the source code",
-                    linkUrl = "https://github.com/JetBrains/compose-jb/tree/master/examples/web_landing"
+                    linkUrl = "https://github.com/JetBrains/compose-jb/tree/master/examples/web-landing"
                 )
             )
         ),
@@ -42,7 +42,7 @@ private fun getCards(): List<GetStartedCardPresentation> {
             links = listOf(
                 LinkOnCard(
                     linkText = "Explore the source code",
-                    linkUrl = "https://github.com/JetBrains/compose-jb/tree/master/examples/falling_balls_with_web"
+                    linkUrl = "https://github.com/JetBrains/compose-jb/tree/master/examples/falling-balls-web"
                 ),
                 LinkOnCard(
                     linkText = "Play",