[release] v0.6.3 (#946)

Co-authored-by: archibate <17721388340@163.com>

Author: yuanming-hu

CMakeLists.txt

@@ -8,7 +8,7 @@ project(taichi)
 
 SET(TI_VERSION_MAJOR 0)
 SET(TI_VERSION_MINOR 6)
-SET(TI_VERSION_PATCH 2)
+SET(TI_VERSION_PATCH 3)
 
 execute_process(
   WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}

README.md

@@ -23,7 +23,7 @@ Advanced features of Taichi include [spatially sparse computing](https://taichi.
 ## Installation [![Downloads](https://pepy.tech/badge/taichi-nightly)](https://pepy.tech/project/taichi-nightly)
 
 ```bash
-python3 -m pip install taichi       # Latest version: 0.6.2
+python3 -m pip install taichi       # Latest version: 0.6.3
 ```
 
 **News: (Apr 29, 2020) The OpenGL Compute Shader backend by [彭于斌 (archibate)](https://github.com/archibate)** is officially released in [**v0.6.0**](https://github.com/taichi-dev/taichi/releases/tag/v0.6.0)! Please try it out with `ti.init(arch=ti.opengl)`.

docs/version

@@ -1 +1 @@
-0.6.2
+0.6.3