Update readme

Summary: A few small adjustments and updates.

Reviewed By: lawrencelomax

Differential Revision: D38155923

fbshipit-source-id: 1aea5f9b64a6b5e4783fe7bad214df6a74be7d45

packer/README.md

@@ -1,31 +1,37 @@
 # Flipper Packer
 
-A tool for splitting a Flipper build into smaller artifacts that can be distributed and cached separately.
+A tool for splitting a Flipper build into smaller artifacts that can be
+distributed and cached separately.
 
-**N.B. Buck build files are not included in the open-source export of this tool.**
+**N.B. Buck build files are not included in the open-source export of this
+tool.**
 
 ## Building
 
 With cargo:
+
 ```
 $ cargo build
 ```
 
 With Buck:
+
 ```
 $ buck build :packer
 ```
 
 ## Testing
 
 With cargo:
+
 ```
 $ cargo test
 ```
 
 With Buck:
+
 ```
-$ buck test :packer
+buck test :packer
 ```
 
 ## Usage
@@ -34,29 +40,28 @@ See help page:
 
 ```
 $ cargo run -- --help
-flipper-packer 0.3.0
+flipper-packer 0.4.0
 Facebook, Inc.
-Split the Flipper distribution into smaller, cacheable artifacts
+Helper tool that breaks down a Flipper release into smaller artifacts.
 
 USAGE:
-    flipper-packer [FLAGS] [OPTIONS] <PLATFORM>
+    flipper-packer [OPTIONS] <PLATFORM>
 
-FLAGS:
-    -h, --help              Prints help information
-        --no-compression    Skip compressing the archives (for debugging)
-    -p, --packlist          Custom list of files to pack.
-    -V, --version           Prints version information
+ARGS:
+    <PLATFORM>    Platform to build for
 
 OPTIONS:
-    -d, --dist <DIRECTORY>      Flipper dist directory to read from. [default: ~/fbsource/xplat/sonar/dist]
-    -o, --output <DIRECTORY>    Directory to write output files to. [default: .]
-
-ARGS:
-    <PLATFORM>    Platform to build for [possible values: Mac, Linux, Windows]
+    -d, --dist <DIST>            Flipper dist directory to read from [default:
+                                 ~/fbsource/xplat/sonar/dist]
+    -h, --help                   Print help information
+        --no-compression         Skip compressing the archives (for debugging)
+    -o, --output <OUTPUT>        Directory to write output files to [default: .]
+    -p, --packlist <PACKLIST>    Custom list of files to pack
+    -V, --version                Print version information
 ```
 
 Buck:
 
 ```
-$ buck run :packer
+buck run :packer
 ```