docs: templated readme (#138)

src/main/kotlin/app/revanced/meta/readme/Template.kt

@@ -0,0 +1,14 @@
+package app.revanced.patches.meta.readme
+
+class Template(val template: String) {
+    val result: StringBuilder = StringBuilder(template)
+
+    fun replaceVariable(name: String, value: String) {
+        val regex = Regex("\\{\\{\\s?$name\\s?\\}\\}")
+        val range = regex.find(result)!!.range
+
+        result.replace(range.start, range.endInclusive + 1, value)
+    }
+
+    override fun toString(): String = result.toString()
+}