Add README

README.md

@@ -0,0 +1,68 @@
+# protodec
+
+Command-line tool to decode arbitrary protobuf data.
+
+## Usage
+
+```
+$ ./protodec -h
+Usage: protodec [arguments]
+Command-line decoder for arbitrary protobuf data. Reads from standard input.
+    -r, --raw                        STDIN is raw binary data (default)
+    -x, --hex                        STDIN is space-separated hexstring
+    -d, --decode                     STDIN is Base64-encoded
+    -p, --pretty                     Pretty print output
+    -h, --help                       Show this help
+```
+
+```
+$ echo 'CkEKCeOCj+OBn+OBlxDSCSIQWmQ730+N8z8tsp3vp8YJQCoSCAESBzA4MDAwMDAaBQ26sSZEKgsIARIHMDgwMDAwMBXD9UhA' | ./protodec -dp
+{
+  "1:0": {
+    "1:0": "わたし",
+    "2:1": 1234,
+    "4:2": [
+      90,
+      100,
+      59,
+      223,
+      79,
+      141,
+      243,
+      63,
+      45,
+      178,
+      157,
+      239,
+      167,
+      198,
+      9,
+      64
+    ],
+    "5:3": {
+      "1:0": 1,
+      "2:1": "0800000",
+      "3:2": {
+        "1:0": 666.7769775390625
+      }
+    },
+    "5:4": {
+      "1:0": 1,
+      "2:1": "0800000"
+    }
+  },
+  "2:1": 3.140000104904175
+}
+```
+
+## Contributing
+
+1. Fork it (<https://github.com/omarroth/protodec/fork>)
+2. Create your feature branch (`git checkout -b my-new-feature`)
+3. Commit your changes (`git commit -am 'Add some feature'`)
+4. Push to the branch (`git push origin my-new-feature`)
+5. Create a new Pull Request
+
+## Contributors
+
+- [Omar Roth](https://github.com/omarroth) - creator and maintainer