Update version in documentation (milvus-io#852)

Signed-off-by: zhenshan.cao <[email protected]>

Author: czs007

README.md

@@ -21,6 +21,7 @@ The following collection shows Milvus versions and recommended PyMilvus versions
 | 1.1.* | 1.1.2 |
 | 2.0.0-RC7 | 2.0.0rc7 |
 | 2.0.0-RC8 | 2.0.0rc8 |
+| 2.0.0-PreGA | 2.0.0rc9 |
 
 
 ## Installation
@@ -34,7 +35,7 @@ $ pip3 install pymilvus
 You can install a specific version of PyMilvus by:
 
 ```shell
-$ pip3 install pymilvus==2.0.0rc8
+$ pip3 install pymilvus==2.0.0rc9
 ```
 
 You can upgrade PyMilvus to the latest version by:
@@ -46,7 +47,7 @@ $ pip3 install --upgrade pymilvus
 
 ## Documentation
 
-Documentation is available online: https://milvus.io/api-reference/pymilvus/v2.0.0rc8/install.html.
+Documentation is available online: https://milvus.io/api-reference/pymilvus/v2.0.0rc9/install.html.
 
 
 ## Packages

docs/source/conf.py

@@ -22,7 +22,7 @@
 author = 'Milvus'
 
 # The full version, including alpha/beta/rc tags
-release = '2.0.0rc8'
+release = '2.0.0rc9'
 show_authors = True
 
 

docs/source/install.rst

@@ -11,7 +11,7 @@ PyMilvus only support python3(>= 3.6), usually, it's ok to install PyMilvus like
 
 .. code-block:: shell
    
-   $ python3 -m pip install pymilvus==2.0.0rc8
+   $ python3 -m pip install pymilvus==2.0.0rc9
 
 Installing in a virtual environment
 ====================================
@@ -27,7 +27,7 @@ See `virtualenv <https://virtualenv.pypa.io/en/latest/>`_ for more information a
    $ python3 -m pip install virtualenv
    $ virtualenv venv
    $ source venv/bin/activate
-   (venv) $ pip install pymilvus==2.0.0rc8
+   (venv) $ pip install pymilvus==2.0.0rc9
 
 If you want to exit the virtualenv ``venv``, you can use ``deactivate``.
 
@@ -49,7 +49,7 @@ If you want to install a specific version of PyMilvus:
 
 .. code-block:: shell
    
-   (venv) $ pip install pymilvus==2.0.0rc8
+   (venv) $ pip install pymilvus==2.0.0rc9
 
 If you want to upgrade PyMilvus into the latest version published: