Fix typos (#595)

* fix(typo):  customise -> customize (en-us)

* fix(typo): Recat -> React

* fix(typo): porject -> project

Co-authored-by: spectralapps <56676505+spectralapps@users.noreply.github.com>

examples/tree-shaking-nextjs/README.md

@@ -44,10 +44,10 @@ It should be noted that the specific package size depends on how many components
 
 ## Other
 
-If you don't use `tree shaking` in your porject, bundle `geist-ui/react` as a `chunk`
+If you don't use `tree shaking` in your project, bundle `geist-ui/react` as a `chunk`
 every time, you may notice that the hash name of `chunk` is still changing,
 this may cause you to not make full use of the cache.
 
 - This issue from `next.js`, and they're improving that, you can track progress [here](https://github.com/vercel/next.js/issues/6303).
 - If you want to customize config of webpack, to ensure that the `chunk` from `geist-ui/react` is always the same,
-  you can refer to [this docuemnt](https://webpack.js.org/guides/code-splitting/).
+  you can refer to [this document](https://webpack.js.org/guides/code-splitting/).

examples/tree-shaking-webpack/README.md

@@ -2,7 +2,7 @@
 
 ### About
 
-If you use `webpack` and `babel` to build your Recat project, this example may be useful for you.
+If you use `webpack` and `babel` to build your React project, this example may be useful for you.
 
 ### Previews
 

pages/en-us/guide/themes.mdx

@@ -61,7 +61,7 @@ Of course, if a _component_ doesn't use your customized variables, it doesn't ma
 
 <Spacer y={1} />
 <Note type="warning">
-  The more changes you customise, the more Components will <b>Re-Render</b>.
+  The more changes you customize, the more Components will <b>Re-Render</b>.
 </Note>
 
 ```jsx