chore(add-caching): update docs

packages/lerna/src/commands/add-caching/README.md

@@ -32,6 +32,9 @@ If you mark `build` as needing topological order, the `nx.json` file will look l
 }
 ```
 
+> **Note:** Before running `add-caching`, Lerna assumes that all scripts need to be run in order.
+> After running `add-caching`, Lerna will only run scripts in order if they are marked as needing topological order.
+
 ### Which scripts are cacheable?
 
 Each script selected will be cached by Lerna. Only select scripts that do not depend on any external inputs (like network calls). `build` and `test` are usually cacheable. `start` and `serve` are usually not cacheable. Sometimes `e2e` is cacheable.