[Workers] Add max upload size to limits.md + Fix toml in configuration.md (#1372)

* Add section on worker HTTP upload size limits.

[Relevant issue](#1361)

* Fix typos.

* Fix toml example

One example previously failed to parse, re-wrote it to comply with TOML 0.4 #1182

Tested; appears to work with wrangler. Have not tested LTS versions of wrangler if they exist.

* Update products/workers/src/content/platform/limits.md

* Update products/workers/src/content/platform/limits.md

* Update products/workers/src/content/platform/limits.md

Co-authored-by: Kate Tungusova <[email protected]>

Author: Mooshua

products/workers/src/content/cli-wrangler/configuration.md

@@ -340,6 +340,7 @@ Usage:
 ```toml
 [build]
 command = "npm install && npm run build"
+
 [build.upload]
 format = "service-worker"
 ```
@@ -365,11 +366,11 @@ format = "service-worker"
 #### `[build.upload]`
 
 <Definitions>
-  
+
   - `format` <PropMeta>required</PropMeta>
 
     - The format of the Worker script, must be "service-worker"
-  
+
 </Definitions>
 
 <Aside>

products/workers/src/content/platform/limits.md

@@ -22,6 +22,21 @@ pcx-content-type: concept
 
 </TableWrap>
 
+## Upload size limits
+
+Cloudflare has network-wide limits on the body size of uploads (HTTP POST/PUT/PATCH requests) which depend on your Cloudflare plan (this is separate from your Workers plan). All uploads larger than your plan limit will be rejected with an HTTP 413 error code ("Request entity too large"). Cloudflare Enterprise customers can [contact Cloudflare support](https://support.cloudflare.com/hc/en-us/articles/200172476) to request a larger upload limit. Learn more about [Cloudflare plans](https://www.cloudflare.com/plans/).
+
+<TableWrap>
+
+| Cloudflare Plan | Maximum body size |
+| --------------- | ----------------- |
+| Free            | 100MB             |
+| Pro             | 100MB             |
+| Business        | 200MB             |
+| Enterprise      | 500MB             |
+
+</TableWrap>
+
 ## Worker limits
 
 <TableWrap>