add usage to readme

xulihang · Jan 1, 2023 · 834428b · 834428b
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diff --git a/.README.md.swp b/.README.md.swp
diff --git a/README.md b/README.md
@@ -1,2 +1,11 @@
 # macOCR
 Command line OCR tool using macOS's VNRecognizeTextRequest
+
+```
+usage:
+    language fastmode languageCorrection image_path output_path
+    --langs: list suppported languages
+
+example:
+    ./OCR en-US,zh-Hans false true ./image.jpg out.json
+```