update EC94 rule doc

RULES.md

@@ -69,7 +69,7 @@ Some are applicable for different technologies.
 | EC91     | Use `Where` before `OrderBy`                                  | Filter elements before sorting them for improved efficiency                                                                                                                                                                                                                                                                                                                                                                  |                                                                                                                                                                         | ❓    | ❓   | ❓  | ❓      | ❓    | ✅  | ❓    |
 | EC92     | Use string.Length instead of comparison with empty string     | Comparing a string to an empty string is unnecessary and can be replaced by a call to `string.Length` which is more performant and more readable.                                                                                                                                                                                                                                                                            |                                                                                                                                                                         | 🚫   | 🚫  | 🚫 | 🚫     | 🚫   | ✅  | 🚫   |
 | EC93     | Return `Task` directly                                        | Consider returning a `Task` directly instead of a single `await`                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                                                                         | ❓    | ❓   | ❓  | ❓      | ❓    | ✅  | ❓    |
-| EC94     | Use orElseGet instead of orElse                               | Parameter of orElse() is evaluated, even when having a non-empty Optional. Supplier method of orElseGet passed as an argument is only executed when an Optional value isn’t present. Therefore, using orElseGet() will save computing time.                                                                                                                                                                                  | [cnumr best practices (3rd edition) BP_042](https://github.com/cnumr/best-practices/blob/main/chapters/BP_042_fr.md)                                                    | 🚧   | ❓   | ❓  | ❓      | ❓    | ❓  | ❓    |
+| EC94     | Use orElseGet instead of orElse                               | Parameter of orElse() is evaluated, even when having a non-empty Optional. Supplier method of orElseGet passed as an argument is only executed when an Optional value isn’t present. Therefore, using orElseGet() will save computing time.                                                                                                                                                                                  | [Optimized use of Java Optional Else](https://github.com/green-code-initiative/ecoCode-challenge/issues/77)                                                             | 🚧   | ❓   | ❓  | ❓      | ❓    | ❓  | ❓    |
 | EC203    | Detect unoptimized file formats                               | When it is possible, to use svg format image over other image format                                                                                                                                                                                                                                                                                                                                                         |                                                                                                                                                                         | 🚀   | 🚀  | 🚀 | ✅      | 🚀   | 🚀 | 🚫   |
 | EC404    | Avoid list comprehension in iterations                        | Use generator comprehension instead of list comprehension in for loop declaration                                                                                                                                                                                                                                                                                                                                            |                                                                                                                                                                         | 🚫   | 🚫  | 🚫 | ✅      | 🚫   | 🚫 | 🚫   |
 |          | Use official social media sharing buttons                     | These JavaScript plugins are very resource-intensive: to work, they require a large number of requests and download heavy files. It is better to prefer direct links.                                                                                                                                                                                                                                                        | [cnumr best practices (3rd edition) BP_019](https://github.com/cnumr/best-practices/blob/main/chapters/BP_019_fr.md)                                                    | 🚫   | 🚫  | 🚀 | 🚫     | 🚫   | 🚫 | 🚀   |