docs: update CHANGELOG with corrected links for overlay syntax and file upload parameters

Author: manu4543

CHANGELOG.md

@@ -5,10 +5,10 @@
 ### Breaking Changes
 
 - **Overlay Syntax Update**  
-  In version 3.0.0, the old overlay syntax parameters for transformations (e.g., `oi`, `ot`, `obg`, and others as detailed [here](https://docs.imagekit.io/features/image-transformations/overlay)) have been removed. These parameters are deprecated and will now return errors when used in URLs.
+  In version 3.0.0, the old overlay syntax parameters for transformations (e.g., `oi`, `ot`, `obg`, and others as detailed [here](https://imagekit.io/docs/add-overlays-on-images)) have been removed. These parameters are deprecated and will now return errors when used in URLs.
 
   **Action Required:**  
-  Migrate to the new layers syntax which supports overlay nesting, offers improved positional control, and allows more transformations at the layer level. For a quick start, refer to the [examples](https://docs.imagekit.io/features/image-transformations/overlay-using-layers#examples). Use the `raw` transformation parameter to implement this migration.
+  Migrate to the new layers syntax which supports overlay nesting, offers improved positional control, and allows more transformations at the layer level. For a quick start, refer to the [examples](https://imagekit.io/docs/add-overlays-on-images). Use the `raw` transformation parameter to implement this migration.
 
 ---
 
@@ -20,4 +20,4 @@
   Previously, client-side file uploads required the SDK to be initialized with both the `publicKey` and `authenticationEndpoint` to fetch security parameters (`signature`, `token`, and `expire`).
 
   **Action Required:**  
-  With version 2.0.0, you must now generate the security parameters (`signature`, `token`, and `expire`) yourself, eliminating the need for the `authenticationEndpoint`. When invoking the SDK's upload method, be sure to include these parameters along with other [upload options](https://docs.imagekit.io/api-reference/upload-file-api/client-side-file-upload). For further details, consult the documentation [here](https://docs.imagekit.io/api-reference/upload-file-api/client-side-file-upload#signature-generation-for-client-side-file-upload).
+  With version 2.0.0, you must now generate the security parameters (`signature`, `token`, and `expire`) yourself, eliminating the need for the `authenticationEndpoint`. When invoking the SDK's upload method, be sure to include these parameters along with other [upload options](https://imagekit.io/docs/api-reference/upload-file/upload-file#Request). For further details, consult the documentation [here](https://imagekit.io/docs/api-reference/upload-file/upload-file#how-to-implement-client-side-file-upload).