fixed 88f9e7fe from https://gitee.com/wusongqing/docs/pulls/8719

update docs against 8560
Signed-off-by: Nwusongqing <wusongqing@huawei.com>

en/application-dev/reference/apis/js-apis-webgl.md

@@ -7,6 +7,8 @@ This module provides WebGL APIs that correspond to the OpenGL ES 2.0 feature set
 >  **NOTE**
 >
 > The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
+>
+> WebGL complies with the OpenGL protocol and does not support multi-thread calling.
 
 
 ## Invoking Method
@@ -90,7 +92,7 @@ gl.clearColor(0.0, 0.0, 0.0, 1.0);
 WebGLContextAttributes
 
 
-  | Name| Type| Mandatory| 
+| Name| Type| Mandatory|
 | -------- | -------- | -------- |
 | alpha | boolean | No|
 | depth | boolean | No|
@@ -107,7 +109,7 @@ WebGLContextAttributes
 
 WebGLActiveInfo
 
-  | Name| Type| Mandatory| 
+| Name| Type| Mandatory|
 | -------- | -------- | -------- |
 | size | GLint | Yes|
 | type | GLenum | Yes|
@@ -118,7 +120,7 @@ WebGLActiveInfo
 
 WebGLShaderPrecisionFormat
 
-  | Name| Type| Mandatory| 
+| Name| Type| Mandatory|
 | -------- | -------- | -------- |
 | rangeMin | GLint | Yes|
 | rangeMax | GLint | Yes|
@@ -132,7 +134,7 @@ WebGLRenderingContextBase
 
 ### Attributes
 
-  | Name| Type| Mandatory| 
+| Name| Type| Mandatory|
 | -------- | -------- | -------- |
 | DEPTH_BUFFER_BIT | GLenum | Yes|
 | STENCIL_BUFFER_BIT | GLenum | Yes|
@@ -435,7 +437,7 @@ WebGLRenderingContextBase
 
 ### Methods
 
-  | Method| Return Value Type| 
+| Method| Return Value Type|
 | -------- | -------- |
 | getContextAttributes() | WebGLContextAttributes \| null |
 | isContextLost() | boolean |
@@ -561,14 +563,14 @@ WebGLRenderingContextBase
 
 WebGLRenderingContextOverloads
 
-  | Method| Return Value Type| 
+| Method| Return Value Type|
 | -------- | -------- |
 | bufferData(target: GLenum, size: GLsizeiptr, usage: GLenum) | void |
 | bufferData(target: GLenum, data: BufferSource \| null, usage: GLenum) | void |
 | bufferSubData(target: GLenum, offset: GLintptr, data: BufferSource) | void |
 | compressedTexImage2D(target: GLenum, level: GLint, internalformat: GLenum, width: GLsizei, height: GLsizei, border: GLint, data: ArrayBufferView) | void |
 | compressedTexSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, data: ArrayBufferView) | void |
-| readPixels(x: GLint, y: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, pixels: ArrayBufferView \| null) | void; | 
+| readPixels(x: GLint, y: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, pixels: ArrayBufferView \| null) | void |
 | texImage2D(target: GLenum, level: GLint, internalformat: GLint, width: GLsizei, height: GLsizei, border: GLint, format: GLenum, type: GLenum, pixels: ArrayBufferView \| null) | void |
 | texImage2D(target: GLenum, level: GLint, internalformat: GLint, format: GLenum, type: GLenum, source: TexImageSource) | void |
 | texSubImage2D(target: GLenum, level: GLint, xoffset: GLint, yoffset: GLint, width: GLsizei, height: GLsizei, format: GLenum, type: GLenum, pixels: ArrayBufferView \| null) | void |

en/application-dev/reference/apis/js-apis-webgl2.md

@@ -7,6 +7,8 @@ This module provides WebGL APIs that correspond to the OpenGL ES 3.0 feature set
 >  **NOTE**
 >
 > The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
+>
+> WebGL2 complies with the OpenGL protocol and does not support multi-thread calling.
 
 
 ## Invoking Method