chore: reformat code in README.md for improved readability

Applied consistent indentation and line-breaking rules to code and text sections in `README.md`, ensuring better formatting and alignment for readability. No functional changes made.

src/index.ts

@@ -109,6 +109,21 @@ export type {
   AugmentationLoadResult
 }
 
+// Export augmentation implementations
+import {
+  FirestoreSyncAugmentation,
+  createFirestoreSyncAugmentation
+} from './augmentations/firestoreSyncAugmentation.js'
+import type { FirestoreSyncConfig } from './augmentations/firestoreSyncAugmentation.js'
+
+export {
+  FirestoreSyncAugmentation,
+  createFirestoreSyncAugmentation
+}
+export type {
+  FirestoreSyncConfig
+}
+
 
 // Export types
 import type {