Fix "pipeline" typo (#153)

* Fix "pipeline" typo

* Fix "pipeline" typo

* Fix "holds"

webgpu/lessons/webgpu-vertex-buffers.md

@@ -308,14 +308,14 @@ per instance, the other will hold the `scale`.
   });
 ```
 
-Above we added 2 entries to the `buffers` array on our pipleine description so now there are 3 buffer entries, meaning
+Above we added 2 entries to the `buffers` array on our pipeline description so now there are 3 buffer entries, meaning
 we're telling WebGPU we'll supply the data in 3 buffers.
 
 For our 2 new entries we set the `stepMode` to `instance`. This means this attribute
 will only advance to next value once per instance. The default is `stepMode: 'vertex'`
 which advances once per vertex (and starts over for each instance).
 
-We have 2 buffers. The one that hold just `scale` is simple. Just like our
+We have 2 buffers. The one that holds just `scale` is simple. Just like our
 first buffer that holds `position` it's 2 32 floats per vertex.
 
 Our other buffer holds `color` and `offset` and they're going to be interleaved in the data like this

webgpu/lessons/zh_cn/webgpu-vertex-buffers.md

@@ -277,11 +277,11 @@ struct VSOutput {
   });
 ```
 
-上面我们在 pipleine 描述的缓冲区数组中新添加了 2 项，因此现在有 3 个缓冲区，这意味着我们告诉 WebGPU 我们将在 3 个缓冲区中提供数据。
+上面我们在 pipeline 描述的缓冲区数组中新添加了 2 项，因此现在有 3 个缓冲区，这意味着我们告诉 WebGPU 我们将在 3 个缓冲区中提供数据。
 
 对于 2 个新条目，我们将 `stepMode` 设置为 `instance`。这意味着该属性在每个实例中只会前进一次到下一个值。默认值为 `stepMode: 'vertex'` 即每个顶点递进一次（每个实例重新开始）。
 
-Above we added 2 entries to the `buffers` array on our pipleine description so now there are 3 buffer entries, meaning
+Above we added 2 entries to the `buffers` array on our pipeline description so now there are 3 buffer entries, meaning
 we're telling WebGPU we'll supply the data in 3 buffers.
 
 For our 2 new entires we set the `stepMode` to `instance`. This means this attribute