Nomad changes

docs/snippets/r/getting-started/read_content.md

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+```r title="R"
+library(kreuzberg)
+
+# Extract a document
+result <- extract_file_sync("document.docx")
+
+# Access core content fields
+cat(sprintf("MIME type: %s\n", mime_type(result)))
+cat(sprintf("Content length: %d characters\n", nchar(content(result))))
+
+# Access structured data
+cat(sprintf("Number of tables: %d\n", length(result$tables)))
+cat(sprintf("Detected language: %s\n", detected_language(result)))
+
+# Access metadata
+author <- metadata_field(result, "author")
+if (!is.null(author)) {
+  cat(sprintf("Document author: %s\n", author))
+}
+```