diff --git a/README.md b/README.md
index b8c1093..e72ff34 100644
--- a/README.md
+++ b/README.md
@@ -9,15 +9,15 @@ Setter is a meta-search tool, reverse image search tool and translator tool all
 Setter can help you with the following:
 * Search for the selected text in multiple search engines all at the same time. Currently support search in two user customized web page search engines, twitter, reddit, Chinese Wechat and Chinese Weibo
 * Reverse search for a image file or a image link shared to Setter app, using search engine Google, Bing, Yandex and Chinese Sogou
-* Translate selected text in a popup window provided by local installed dictionary app ColorDict, or pass the text to online translator including DeepL, Google Translator and UrbanDictorary
-* Multiple search engines for you to choose from as the primary global search engine and specialized local search enginen. Support switching among various searching engines on the fly by long click on it's tab title area
+* Translate selected text in a popup window provided by local installed dictionary app ColorDict, or pass the text to online translator including DeepL, Google Translator and UrbanDictionary
+* Multiple search engines for you to choose from as the primary global search engine and specialized local search engine. Support switching among various searching engines on the fly by long click on it's tab title area
 
 ## Privacy focus
 Setter use Android system webview a lot and it make sure Geolocation API is turned off and MetricsOptOut turned on to prevent leaking browsing data to Google.
 
 When doing reverse image search, Setter will resize the image to a low resolution and strip off EXIF data before upload it to the search engines. Setter will also rename the file to a generic name.
 
-Setter support and promot search engines which respect user's privacy, like DuckDuckGo, StartPage and Swisscows. Setter also support and recommend using a local dictionary app to guard your reading habit from leaking.
+Setter support and promote search engines which respect user's privacy, like DuckDuckGo, StartPage and Swisscows. Setter also support and recommend using a local dictionary app to guard your reading habit from leaking.
 
 <a href='https://play.google.com/store/apps/details?id=site.leos.setter'><img alt='Get it on Google Play' src='https://play.google.com/intl/en_us/badges/static/images/badges/en_badge_web_generic.png' height='75'/></a>
 <a href='https://f-droid.org/packages/site.leos.setter/'><img alt='Get it on F-Droid' src='https://fdroid.gitlab.io/artwork/badge/get-it-on.png' height='75'/></a>
diff --git a/app/build.gradle b/app/build.gradle
index d9583db..0321868 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -9,8 +9,8 @@ android {
         applicationId 'site.leos.setter'
         minSdk 26
         targetSdk 30
-        versionCode 12
-        versionName '0.1.11'
+        versionCode 13
+        versionName '0.1.12'
         testInstrumentationRunner 'androidx.test.runner.AndroidJUnitRunner'
         archivesBaseName = "Setter-v$versionName"
     }
diff --git a/fastlane/metadata/android/en-US/changelogs/13.txt b/fastlane/metadata/android/en-US/changelogs/13.txt
new file mode 100644
index 0000000..066f25d
--- /dev/null
+++ b/fastlane/metadata/android/en-US/changelogs/13.txt
@@ -0,0 +1,3 @@
+* use Firefox user agent in text search
+* re-order setting menu
+* other bug fixed and improvement
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