Update template docs, Lazy provide version to bintray

Signed-off-by: JunHyung Lim <entrypointkr@gmail.com>

Author: entrypointkr

README.md

@@ -1,4 +1,4 @@
-# Spigradle
+# Spigradle · [ ![Download](https://api.bintray.com/packages/entrypointkr/Spigradle/spigradle/images/download.svg?version=latest)](https://bintray.com/entrypointkr/Spigradle/spigradle/_latestVersion) [![License](https://img.shields.io/github/license/EntryPointKR/Spigradle.svg)](https://github.com/EntryPointKR/Spigradle/blob/master/LICENSE)
 
 [comment]: <> (!! Do not edit this file but 'docs/templates' or 'docs/root-templates', See [CONTRIBUTING.md] !!)
 

buildSrc/src/main/kotlin/spigradle-publish.gradle.kts

@@ -28,7 +28,9 @@ bintray {
         issueTrackerUrl = "https://github.com/EntryPointKR/Spigradle/issues"
         setLicenses("Apache-2.0")
         vcsUrl = spigradleVcsUrl
-        version.apply {
+    }
+    project.afterEvaluate {
+        pkg.version.apply {
             name = project.version.toString()
             released = Date().toString()
             vcsTag = project.version.toString()

docs/root-templates/template_README.md

@@ -1,4 +1,4 @@
-# Spigradle
+# Spigradle · [ ![Download](https://api.bintray.com/packages/entrypointkr/Spigradle/spigradle/images/download.svg?version=latest)](https://bintray.com/entrypointkr/Spigradle/spigradle/_latestVersion) [![License](https://img.shields.io/github/license/EntryPointKR/Spigradle.svg)](https://github.com/EntryPointKR/Spigradle/blob/master/LICENSE)
 
 An intelligent Gradle plugin used to develop plugins for Spigot, Bungeecord and NukkitX.