Update readme files

Author: halx99

CMakeOptions.md

@@ -23,6 +23,7 @@
   - AX_ENABLE_EXT_COCOSTUDIO: the cocosstudio extension for load .csb: `TRUE`
   - AX_ENABLE_EXT_FAIRYGUI: the fairygui extension, default: `TRUE`
   - AX_ENABLE_EXT_IMGUI: the imgui extension, only support PC platforms, default: `TRUE` 
+  - AX_ENABLE_EXT_LIVE2D: the imgui extension, only support PC platforms, default: `FALSE` 
 - AX_WITH_XXX: usually user don't need care it
 
 ## The options for axis apps

README.md

@@ -131,6 +131,13 @@ See [windows workflow guide](https://github.com/axis-project/axis/issues/564)
 - Cpp: `axis new -p org.axis.hellocpp -d D:\dev\projects\ -l cpp --portrait HelloCpp`
 - Lua: `axis new -p org.axis.hellolua -d D:\dev\projects\ -l lua --portrait HelloLua`
 
+### Some interesting related projects based on axis
+
+- https://github.com/solan-solan/HeightMap/tree/smooth_lod_passing
+- https://github.com/wzhengsen/StarryX
+- https://github.com/aismann/SimpleSnake
+- https://github.com/EugenyN/TanksKombat
+
 ### Notes
   * ThreadLocalStorage (TLS) 
     - ios x86 simulator ios>=10 and axis no longer provide x86 libraries

README_CN.md

@@ -93,6 +93,13 @@
 
   4. 之后就可以用xcode打开, 选择cpp-tests编译运行
 
+### 一些基于axis有趣的项目
+
+- https://github.com/solan-solan/HeightMap/tree/smooth_lod_passing
+- https://github.com/wzhengsen/StarryX
+- https://github.com/aismann/SimpleSnake
+- https://github.com/EugenyN/TanksKombat
+
 ### 注意
   * ThreadLocalStorage线程本地存储
     - ios x86 simulator ios>=10 and axis no longer provide x86 libraries