diff --git a/README.md b/README.md
index 769f77c2..29f4a028 100644
--- a/README.md
+++ b/README.md
@@ -341,7 +341,7 @@ AdMob.addListener(RewardAdPluginEvents.Rewarded, async () => {
 ### initialize(...)
 
 ```typescript
-initialize(options: AdMobInitializationOptions) => Promise<void>
+initialize(options?: AdMobInitializationOptions) => Promise<void>
 ```
 
 Initialize AdMob with <a href="#admobinitializationoptions">AdMobInitializationOptions</a>
@@ -901,7 +901,7 @@ When notice listener of OnAdLoaded, you can get banner size.
 
 #### AdMobError
 
-For more information
+For more information
 https://developers.google.com/android/reference/com/google/android/gms/ads/AdError
 
 | Prop          | Type                | Description                            |
@@ -953,7 +953,7 @@ https://developers.google.com/android/reference/com/google/android/gms/ads/AdErr
 
 #### AdMobRewardItem
 
-For more information
+For more information
 https://developers.google.com/admob/android/rewarded-video-adapters?hl=en
 
 | Prop         | Type                | Description              |
@@ -974,9 +974,7 @@ https://developers.google.com/admob/android/rewarded-video-adapters?hl=en
 
 From T, pick a set of properties whose keys are in the union K
 
-<code>{
- [P in K]: T[P];
- }</code>
+<code>{
 [P in K]: T[P];
 }</code>
 
 
 ### Enums