Noissue - Improve documentation of patchconv to address common usage issue

patchconv/README.md

 # Convert Rietveld patches to apply them locally
 
 The `patchconv` module and `patchconv` script convert SVN-style patches that
 are downloaded from [Rietveld](https://github.com/rietveld-codereview/rietveld)
 code reviews to Git-style patches that can be used as input for `hg import` or
 `git apply`.
 
 In many cases the patches from the review can be applied directly with
 `patch -p1`. However, if the changes contain copies or renames or include
 binary files, `patch` will not apply them correctly. Git and Mercurial commands
 will also not work because when the changes are uploaded to the review, they
 are converted to SVN-like format that Rietveld normally works with. `patchconv`
 undoes this conversion and returns the patch to the state where it can be
 applied using Git or Mercurial.
 
 ## Installation
 
 Install directly from Mercurial repository using pip:
 
     $ pip install 'hg+https://hg.adblockplus.org/codingtools#egg=patchconv&subdirectory=patchconv'
 
 ## Usage
 
 The script in the package will be available immediately after the installation.
 Its interface is simple: it reads from stdin and writes to stdout.
 
-    $ patchconv <patch-from-rietveld.diff >git-patch.diff
+    $ cat patch-from-rietveld.diff | patchconv >git-patch.diff
 
-For additional convenience you can use the provided `rapply.sh` script that
-downloads, converts and applies patches from Rietveld reviews to your local
-working copy. In order to use it, open a review, copy the URL of a `[raw]`
-download link in the top right corner of a patch set overview and then paste it
-into the console:
+You can also download the patch directly from the review and apply it directly
+without saving to a file:
+
+    $ curl https://.../issue3322_4433.diff | patchconv | git apply
+
+This is a common sequence of commands so we have a script that automates it,
+for both Mercurial and Git (it autodetects the VCS). In order to use it, open a
+review, copy the URL of a `[raw]` download link in the top right corner of a
+patch set overview and then paste it into the console:
 
     $ rapply.sh https://codereview.adblockplus.org/download/issue3322_4433.diff
 
-or, if you've already downloaded the diff to a local file:
+or, if you have already downloaded the diff to a local file:
 
     $ rapply.sh issue3322_4433.diff
 
 In both cases you need to be in the directory containing the repository to
 which you are applying the diff.
 
 ## Testing
 
 The tests can be run via [Tox](http://tox.readthedocs.org/)