Add information about the language a recipe is written in

Fixes: #260

Author: mike-solomon

src/main/kotlin/org/openrewrite/RecipeMarkdownWriter.kt

@@ -28,6 +28,21 @@ class RecipeMarkdownWriter(
         return recipeSource.toString().startsWith("typescript-search://")
     }
 
+    /**
+     * Determines the implementation language of a recipe based on its source URI.
+     * - TypeScript recipes have URIs starting with "typescript-search://"
+     * - YAML (declarative) recipes have URIs ending with ".yml"
+     * - All other recipes are assumed to be Java
+     */
+    private fun getRecipeLanguage(recipeDescriptor: RecipeDescriptor): String {
+        val recipeSource = recipeToSource[recipeDescriptor.name]?.toString() ?: return "Java"
+        return when {
+            recipeSource.startsWith("typescript-search://") -> "TypeScript"
+            recipeSource.endsWith(".yml") -> "YAML"
+            else -> "Java"
+        }
+    }
+
     fun writeRecipe(
         recipeDescriptor: RecipeDescriptor,
         outputPath: Path,
@@ -127,12 +142,15 @@ import TabItem from '@theme/TabItem';
     }
 
     private fun BufferedWriter.writeSourceLinks(recipeDescriptor: RecipeDescriptor, origin: RecipeOrigin) {
+        val recipeLanguage = getRecipeLanguage(recipeDescriptor)
         if (origin.license == Licenses.Proprietary) {
             //language=markdown
             writeln(
                 """
                 ## Recipe source
 
+                **Language**: $recipeLanguage
+
                 This recipe is only available to users of [Moderne](https://docs.moderne.io/).
 
                 """.trimIndent()
@@ -145,6 +163,8 @@ import TabItem from '@theme/TabItem';
                 """
             ## Recipe source
 
+            **Language**: $recipeLanguage
+
             [GitHub](${origin.githubUrl(recipeDescriptor.name, recipeSource)}),
             [Issue Tracker](${origin.issueTrackerUrl()}),
             [Maven Central](https://central.sonatype.com/artifact/${origin.groupId}/${origin.artifactId}/)