Fix spelling mistakes in //docs.

docs/updating_clang_format_binaries.md

 # Updating Clang format binaries
 
 Instructions on how to update the [clang-format binaries](clang_format.md) that
 come with a checkout of Chromium.
 
 ## Prerequisites
 
 You'll need a Windows machine, a Linux machine, and a Mac; all capable of
 building clang-format. You'll also need permissions to upload to the appropriate
 google storage bucket. Chromium infrastructure team members have this, and
 others can be granted the permission based on need. Talk to ncarter or hinoka
 about getting access.
 
 ## Pick a head svn revision
 
 Consult http://llvm.org/svn/llvm-project/ for the current head revision. This
 will be the CLANG_REV you'll use later to check out each platform to a
 consistent state.
 
 ## Build a release-mode clang-format on each platform
 
-Follow the the official instructions here:
+Follow the official instructions here:
 http://clang.llvm.org/get_started.html.
 
 Windows step-by-step:
 
 ```shell
 # [double check you have the tools you need]
 where cmake.exe  # You need to install this.
 where svn.exe  # Maybe fix with: set PATH=%PATH%;D:\src\depot_tools\svn_bin
 "c:\Program Files (x86)\Microsoft Visual Studio 12.0\vc\vcvarsall.bat" amd64_x86
 
@@ skipping 82 matching lines @@
     The binaries were built at clang revision ####### on ####DATETIME####.
 
     BUG=
 
 The change should **always** include new `.sha1` files for each platform (we
 want to keep these in lockstep), should **never** include `clang-format`
 binaries directly. The change should **always** update `README.chromium`
 
 clang-format binaries should weigh in at 1.5MB or less. Watch out for size
 regressions.