chore: fix typo, adjust docs

Author: rinej

README.md

@@ -78,7 +78,9 @@ jobs:
 
 When `sign: true` is enabled, this action configures Android code signing by setting Gradle properties. It supports **two property conventions** for maximum compatibility:
 
-### Standard Android Properties
+### Android injected properties
+
+(this is an undocumented feature used by Fastlane and AGP)
 
 The action automatically sets `android.injected.signing.*` properties which are natively recognized by the Android Gradle Plugin. These properties work with any standard `build.gradle` configuration without modifications:
 
@@ -102,13 +104,20 @@ For apps that explicitly read custom properties in their `build.gradle`, the act
 signingConfigs {
     release {
         storeFile file('path/to/keystore.jks')
-        keyAlias project.findProperty('RNEF_UPLOAD_KEY_ALIAS') ?: 'placeholder'
-        storePassword project.findProperty('RNEF_UPLOAD_STORE_PASSWORD') ?: 'placeholder'
-        keyPassword project.findProperty('RNEF_UPLOAD_KEY_PASSWORD') ?: 'placeholder'
+        keyAlias project.findProperty('ROCK_UPLOAD_KEY_ALIAS') ?: 'placeholder'
+        storePassword project.findProperty('ROCK_UPLOAD_STORE_PASSWORD') ?: 'placeholder'
+        keyPassword project.findProperty('ROCK_UPLOAD_KEY_PASSWORD') ?: 'placeholder'
     }
 }
 ```
 
+The following mappings are set:
+
+- `ROCK_UPLOAD_KEY_ALIAS` ← `inputs.keystore-key-alias`
+- `ROCK_UPLOAD_STORE_FILE` ← `inputs.keystore-store-file`
+- `ROCK_UPLOAD_STORE_PASSWORD` ← `inputs.keystore-store-password`
+- `ROCK_UPLOAD_KEY_PASSWORD` ← `inputs.keystore-key-password`
+
 Both conventions are set simultaneously, so the action works with any existing build configuration.
 
 ## Prerequisites

action.yml

@@ -191,7 +191,7 @@ runs:
         echo "android.injected.signing.key.password=${{ inputs.keystore-key-password }}" >> $HOME/.gradle/gradle.properties
 
         # Rock custom properties (for apps that explicitly read them in signingConfigs)
-        echo "ROCK__UPLOAD_STORE_FILE=${{ inputs.keystore-store-file }}" >> $HOME/.gradle/gradle.properties
+        echo "ROCK_UPLOAD_STORE_FILE=${{ inputs.keystore-store-file }}" >> $HOME/.gradle/gradle.properties
         echo "ROCK_UPLOAD_STORE_PASSWORD=${{ inputs.keystore-store-password }}" >> $HOME/.gradle/gradle.properties
         echo "ROCK_UPLOAD_KEY_ALIAS=${{ inputs.keystore-key-alias }}" >> $HOME/.gradle/gradle.properties
         echo "ROCK_UPLOAD_KEY_PASSWORD=${{ inputs.keystore-key-password }}" >> $HOME/.gradle/gradle.properties