message: Update README.md and docs/build_mozc_in_docker.md
diff: [Mozc - a Japanese Input Method Editor designed for multi-platform](https://github.com/google/mozc)
  ===================================
  -Copyright 2010-2018, Google Inc.
  +Copyright 2010-2020, Google Inc.
  Mozc is a Japanese Input Method Editor (IME) designed for multi-platform such as
  Android OS, Apple OS X, Chromium OS, GNU/Linux and Microsoft Windows. This
  @@ -11,7 +11,7 @@ OpenSource project originates from
  Build Status
  ------------
  -|Android + OS X + Linux + NaCl |Windows |
  +|Android + OS X + Linux |Windows |
  |:----------------------------:|:------:|
  [![Build Status](https://travis-ci.org/google/mozc.svg?branch=master)](https://travis-ci.org/google/mozc) |[![Build status](https://ci.appveyor.com/api/projects/status/1rvmtp7f80jv7ehf/branch/master?svg=true)](https://ci.appveyor.com/project/google/mozc/branch/master) |
  @@ -31,7 +31,7 @@ Detailed differences between Google Japanese Input and Mozc are described in [Ab
  Build Instructions
  ------------------
  -* [How to build Mozc in Docker](docs/build_mozc_in_docker.md): Android, NaCl, and Linux desktop builds.
  +* [How to build Mozc in Docker](docs/build_mozc_in_docker.md): Android library and Linux desktop builds.
  * [How to build Mozc in OS X](docs/build_mozc_in_osx.md): OS X build.
  * [How to build Mozc in Windows](docs/build_mozc_in_windows.md): Windows build.
  @@ -62,21 +62,17 @@ outside [src/third_party](src/third_party) following directories contain
  thrid party code.
  ###[src/data/dictionary_oss/](src/data/dictionary_oss)
  -
  Mixed.
  See [src/data/dictionary_oss/README.txt](src/data/dictionary_oss/README.txt)
  ###[src/data/test/dictionary/](src/data/test/dictionary)
  -
  The same to [src/data/dictionary_oss/](src/data/dictionary_oss).
  See [src/data/dictionary_oss/README.txt](src/data/dictionary_oss/README.txt)
  ###[src/data/test/stress_test/](src/data/test/stress_test)
  -
  Public Domain. See the comment in
  [src/data/test/stress_test/sentences.txt](src/data/test/stress_test/sentences.txt)
  ###[src/data/unicode/](src/data/unicode)
  -
  UNICODE, INC. LICENSE AGREEMENT.
  See each file header for details.
  