fix(srv): add precision on ephemeral storage for faas MTA-6327) (#5337)

Author: SamyOubouaziz

pages/serverless-functions/reference-content/functions-limitations.mdx

@@ -17,17 +17,17 @@ This section contains usage limits that apply when using Serverless Functions.
 | Custom domains                                      | Max number | 50               | Function                    |
 | Zip size                                            | Max size   | 100 MiB          | Function                    |
 | Code size                                           | Max size   | 500 MiB          | Function                    |
-| Temporary disk size                                 | Max size   | 1024 MiB         | Function instance           |
+| Temporary disk size\***                             | Max size   | 1024 MiB         | Function instance           |
 | Invocation rate                                     | Max number | 5000 per second  | Function                    |
-| Concurrency (number of simultaneous requests)\***   | Max        | 1                | Function instance           |
+| Concurrency (number of simultaneous requests)\****  | Max        | 1                | Function instance           |
 | Scaling (number of simultaneous function instances) | Max        | 50               | Function                    |
 | Environment variables                               | Max number | 100              | Function + Namespace        |
 | Environment variables                               | Max size   | 1000 chars       | Environment variable        |
 | Secret environment variables                        | Max number | 100              | Function + Namespace        |
 | Secret environment variables                        | Max size   | 65536 bytes      | Secret environment variable |
 | Time before scale to zero                           | Time       | 15 minutes       | Instance                    |
 | Time before scale down                              | Time       | 30 seconds       | Instance                    |
-| HTTP request duration\****                          | Max        | 60 minutes       | Request                     |
+| HTTP request duration\*****                         | Max        | 60 minutes       | Request                     |
 | Private Networks attached                           | Max        | 1                | Function                    |
 | Payload                                             | Max size   | 6 MiB            | Request                     |
 | Logs                                                | Logs       | 30000 per minute | Project                     |
@@ -36,9 +36,11 @@ This section contains usage limits that apply when using Serverless Functions.
 
 \** Total function memory is the sum of the memory allocated to all your functions at their maximum Scale.
 
-\*** Each instance of a function can handle a single request at a time, but a function can have several instances running at the same time.
+\*** Temporary disk size corresponds to the ephemeral storage allocated to the root (`/`) folder of a function. This storage space is fixed and cannot be edited.
 
-\**** Maximum duration of a single HTTP request before this request is timed out. Use [Serverless Jobs](/serverless-jobs/) for tasks up to 24h.
+\**** Each instance of a function can handle a single request at a time, but a function can have several instances running at the same time.
+
+\***** Maximum duration of a single HTTP request before this request is timed out. Use [Serverless Jobs](/serverless-jobs/) for tasks up to 24h.
 
 These limits are enforced as [Organization quotas](/organizations-and-projects/additional-content/organization-quotas/#serverless-functions).