Docs: Fix description of PCFSoftShadowMap.

docs/api/en/constants/Renderer.html

@@ -46,7 +46,7 @@
 
 		[page:constant BasicShadowMap] gives unfiltered shadow maps - fastest, but lowest quality.<br />
 		[page:constant PCFShadowMap] filters shadow maps using the Percentage-Closer Filtering (PCF) algorithm (default).<br />
-		[page:constant PCFSoftShadowMap] filters shadow maps using the Percentage-Closer Soft Shadows (PCSS) algorithm.<br />
+		[page:constant PCFSoftShadowMap] filters shadow maps using the Percentage-Closer Filtering (PCF) algorithm with better soft shadows especially when using low-resolution shadow maps.<br />
 		[page:constant VSMShadowMap] filters shadow maps using the Variance Shadow Map (VSM) algorithm. When using VSMShadowMap all shadow receivers will also cast shadows.
 		</p>
 

docs/api/zh/constants/Renderer.html

@@ -46,7 +46,7 @@
 
 		[page:constant BasicShadowMap] 能够给出没有经过过滤的阴影映射 —— 速度最快，但质量最差。<br />
 		[page:constant PCFShadowMap] 为默认值，使用Percentage-Closer Filtering (PCF)算法来过滤阴影映射。<br />
-		[page:constant PCFSoftShadowMap] 使用Percentage-Closer Soft Shadows (PCSS)算法来过滤阴影映射。<br />
+		[page:constant PCFSoftShadowMap] filters shadow maps using the Percentage-Closer Filtering (PCF) algorithm with better soft shadows especially when using low-resolution shadow maps.<br />
 		[page:constant VSMShadowMap] 使用Variance Shadow Map (VSM)算法来过滤阴影映射。当使用VSMShadowMap时，所有阴影接收者也将会投射阴影。
 		</p>