still add support for py2.6, but partially support because of protobu…

…f's issue

fix doc formatting issue

README.md

@@ -17,12 +17,13 @@
 ```
 
 **supported platforms**:
+
 - windows
 - mac
 - linux
 
 #### Supported Python:
-- Python 2.7, 3.3, 3.4, 3.5, 3.6, PyPy, PyPy3
+- Python 2.6, 2.7, 3.3, 3.4, 3.5, 3.6, PyPy, PyPy3
 
 
 #### Full Usage list:
@@ -49,6 +50,7 @@ There're three ways to configure the access key and endpoint and they're priorit
 
 
 **Priority**
+
 1. Parameters
 
 ```shell
@@ -135,6 +137,7 @@ You could store the content of one parameter into a file and pass it via the com
 ```
 
 **Parameter Validation**
+
 - Mandatory check: if one mandatory parameter is missed, it will report error with usage info.
 - Format of parameter's value will be validated. e.g. 例如int, bool, string list, special data structure.
 - for boolean, it support:
@@ -228,6 +231,7 @@ All the commands support below optional global options:
 - get_project
 - delete_project
 - **copy_project**
+
    - 复制所有源project的logstore, logtail, machine group和index配置等到目标project中.
 
 ```shell

README_CN.md

@@ -16,14 +16,15 @@
 ```
 
 **支持平台**:
+
 - windows
 - mac
 - linux
 
 
 
 #### 支持平台
-- Python 2.7, 3.3, 3.4, 3.5, 3.6, PyPy, PyPy3
+- Python 2.6, 2.7, 3.3, 3.4, 3.5, 3.6, PyPy, PyPy3
 
 
 #### 完整参数列表
@@ -49,6 +50,7 @@
 有三种方式配置访问秘钥与入口, 优先级如下:
 
 **优先级**
+
 1. 参数
 
 ```shell
@@ -142,12 +144,15 @@ endpoint=cn-hangzhou.log.aliyun.com
 ```
 
 **参数校验**
+
 - 必填的参数没有填写时会报错, 输出参数列表
 - 参数格式本身会进行校验, 例如int, bool, string list, 特定数据结构等
 - bool支持的形式有:
   - true (大小写不敏感), T, 1
   - false (大小写不敏感), F, 0
+
 - 字符串列表支持的形式是:
+
   - ["s1", "s2"]
 
 ### 输出
@@ -237,6 +242,7 @@ def create_logstore(self, project_name, logstore_name, ttl=2, shard_count=30):
 - get_project
 - delete_project
 - **copy_project**
+
    - 复制所有源project的logstore, logtail, machine group和index配置等到目标project中.
 
 ```shell

setup.py

@@ -22,6 +22,7 @@
     'Development Status :: 4 - Beta',
     'License :: OSI Approved :: MIT License',
     'Operating System :: OS Independent',
+    'Programming Language :: Python :: 2.6',
     'Programming Language :: Python :: 2.7',
     'Programming Language :: Python :: 3.3',
     'Programming Language :: Python :: 3.4',