Add URL of ViaProxy to runViaProxy task (#4215)

.gitignore

@@ -111,5 +111,5 @@ nb-configuration.xml
 ### MacOS ###
 .DS_Store
 
-### Run Folder ###
+### Run Folder (ViaProxy) ###
 common/run/

common/build.gradle.kts

@@ -19,7 +19,8 @@ tasks.named<Jar>("sourcesJar") {
     from(project(":viaversion-api").sourceSets.main.get().allSource)
 }
 
-// Task to quickly test/debug code changes using ViaProxy
+// Task to quickly test/debug code changes using https://github.com/ViaVersion/ViaProxy
+// For further instructions see the ViaProxy repository README
 tasks.register<JavaExec>("runViaProxy") {
     dependsOn(tasks.shadowJar)