[docs] GettingStarted: Add a warning about spaces in the absolute path

Author: Sima Nerush

docs/HowToGuides/GettingStarted.md

@@ -66,6 +66,11 @@ toolchain as a one-off, there are a couple of differences:
    mkdir swift-project
    cd swift-project
    ```
+   
+    > **Warning**  
+    > Make sure the absolute path to your `swift-project` directory **does not** contain spaces, 
+        since that might cause issues during the build step.
+    
 2. Clone the sources:
    - Via SSH (recommended):
      If you plan on contributing regularly, cloning over SSH provides a better
@@ -121,9 +126,6 @@ toolchain as a one-off, there are a couple of differences:
 
 - If `update-checkout` failed, double-check that the absolute path to your
   working directory does not have non-ASCII characters.
-- If `update-checkout` failed and the absolute path to your working directory
-  had spaces in it, please [file a bug report][Swift Issues] and change the path
-  to work around it.
 - Before running `update-checkout`, double-check that `swift` is the only
   repository inside the `swift-project` directory. Otherwise,
   `update-checkout` may not clone the necessary dependencies.