rename python README, and fix markdown in java and python respectively

java/README.md

 Protocol Buffers - Google's data interchange format
+===================================================
+
+[![Build Status](https://travis-ci.org/google/protobuf.svg?branch=master)](https://travis-ci.org/google/protobuf)
+
 Copyright 2008 Google Inc.
 
 This directory contains the Java Protocol Buffers runtime library.
@@ -55,12 +59,14 @@ E.g. to install the lite version of the jar, you would run:
 The resulting artifact has the 'lite' classifier.  To reference it
 for dependency resolution, you would specify it as:
 
+```
   <dependency>
     <groupId>com.google.protobuf</groupId>
     <artifactId>protobuf-java</artifactId>
     <version>${version}</version>
     <classifier>lite</classifier>
   </dependency>
+```
 
 Installation - Without Maven
 ============================

python/README.txt → python/README.md

 Protocol Buffers - Google's data interchange format
+===================================================
+
+[![Build Status](https://travis-ci.org/google/protobuf.svg?branch=master)](https://travis-ci.org/google/protobuf)
+
 Copyright 2008 Google Inc.
 
 This directory contains the Python Protocol Buffers runtime library.
@@ -66,7 +70,9 @@ Installation
 5) Install:
 
     $ python setup.py install
+
   or:
+
     $ python setup.py install --cpp_implementation
 
    This step may require superuser privileges.
@@ -103,4 +109,3 @@ change the default so that C++ implementation is used whenever it is available.
 It is strongly recommended to run `python setup.py test` after setting the
 variable to "cpp", so the tests will be against C++ implemented Python
 messages.
-