chore: typo se -> set (#1413)

README.md

@@ -157,7 +157,7 @@ If you wish to create Android project yourself, there is a few requirements that
     files that you need to include in your Android application for wry to function properly:
 
     - `WRY_ANDROID_PACKAGE`: which is the reversed domain name of your android project and the app name in snake_case, for example, `com.wry.example.wry_app`
-    - `WRY_ANDROID_LIBRARY`: for example, if your cargo project has a lib name `wry_app`, it will generate `libwry_app.so` so you se this env var to `wry_app`
+    - `WRY_ANDROID_LIBRARY`: for example, if your cargo project has a lib name `wry_app`, it will generate `libwry_app.so` so you set this env var to `wry_app`
     - `WRY_ANDROID_KOTLIN_FILES_OUT_DIR`: for example, `path/to/app/src/main/kotlin/com/wry/example`
 
 2.  Your main Android Activity needs to inherit `AppCompatActivity`, preferably it should use the generated `WryActivity` or inherit it.