Improve description of repositories blocks (#81)

* Update build.gradle

* Implements @liach's suggested changes

* Update build.gradle

Co-authored-by: Juuxel <6596629+Juuxel@users.noreply.github.com>

* Update build.gradle

Co-authored-by: Juuxel <6596629+Juuxel@users.noreply.github.com>

* Update build.gradle

* Update build.gradle

Co-authored-by: Juuxel <6596629+Juuxel@users.noreply.github.com>

build.gradle

@@ -10,6 +10,14 @@ archivesBaseName = project.archives_base_name
 version = project.mod_version
 group = project.maven_group
 
+repositories {
+    // Add repositories to retrieve artifacts from in here.
+    // You should only use this when depending on other mods because
+    // Loom adds the essential maven repositories to download Minecraft and libraries from automatically.
+    // See https://docs.gradle.org/current/userguide/declaring_repositories.html
+    // for more information about repositories.
+}
+
 dependencies {
 	// To change the versions see the gradle.properties file
 	minecraft "com.mojang:minecraft:${project.minecraft_version}"
@@ -73,10 +81,12 @@ publishing {
 			}
 		}
 	}
-
-	// Select the repositories you want to publish to
-	// To publish to maven local, no extra repositories are necessary. Just use the task `publishToMavenLocal`.
-	repositories {
-		// See https://docs.gradle.org/current/userguide/publishing_maven.html for information on how to set up publishing.
-	}
+    
+    // See https://docs.gradle.org/current/userguide/publishing_maven.html for information on how to set up publishing.
+    repositories {
+        // Add repositories to publish to here.
+        // Notice: This block does NOT have the same function as the block in the top level.
+        // The repositories here will be used for publishing your artifact, not for
+        // retrieving dependencies.
+    }
 }