Update README.md

README.md

@@ -3,4 +3,24 @@
 
 * [psmfdump](psmfdump/README.md): Dump .264 and .oma files from .pmf files.
 * [mps2pmf](mps2pmf/README.md): Convert .mps files to .pmf files.
-* [autousc](autousc/README.md): Automating UMD Stream Composer multiplex works.
+* [autousc](autousc/README.md): Automating UMD Stream Composer multiplex works.
+
+# Download
+You can find a prebuilt package in the [release](/~https://github.com/TeamPBCN/pmftools/releases/latest) section.
+
+# Usage
+Convert PMF files to MP4 for editing
+```
+Step 1: put PMF files into `input/pmf`
+Step 2: run `pmf_to_mp4.bat`
+Step 3: enjoy ~^.^~!
+```
+
+Convert AVI files to PMF
+```
+Step 1: put AVI files into `input/avi`
+Step 2: run `avi_to_pmf.bat`
+Step 3: enjoy ~^.^~!
+```
+
+# Verified by 吉🐣 PRODUCTION*