fix code, resize images

_android/tutorial.md

@@ -12,8 +12,8 @@ This tutorial is written for readers who are new to either or both Blockstack
 and Android to create a decentralized application. It contains the following
 content:
 
-- TOC
+TOC
-  {:toc}
+{:toc}
 
 This tutorial was extensively tested using Android Studio 3.6 on a Dell XPS 13
 running Ubuntu 19. If your environment is different, you may encounter
@@ -508,25 +508,24 @@ Now that you have created your initial project and verified it running in an emu
 
    ```kotlin
    package blockstack.id.user.hello
-   ```
 
-import android.content.Intent
+    import android.content.Intent
-import android.os.Bundle
+    import android.os.Bundle
-import androidx.appcompat.app.AppCompatActivity
+    import androidx.appcompat.app.AppCompatActivity
-import androidx.lifecycle.lifecycleScope
+    import androidx.lifecycle.lifecycleScope
-import kotlinx.android.synthetic.main.activity_main.\*
+    import kotlinx.android.synthetic.main.activity_main.\*
-import kotlinx.coroutines.Dispatchers
+    import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
+    import kotlinx.coroutines.launch
-import org.blockstack.android.sdk.BlockstackSession
+    import org.blockstack.android.sdk.BlockstackSession
-import org.blockstack.android.sdk.BlockstackSignIn
+    import org.blockstack.android.sdk.BlockstackSignIn
-import org.blockstack.android.sdk.SessionStore
+    import org.blockstack.android.sdk.SessionStore
-import org.blockstack.android.sdk.getBlockstackSharedPreferences
+    import org.blockstack.android.sdk.getBlockstackSharedPreferences
-import org.blockstack.android.sdk.model.UserData
+    import org.blockstack.android.sdk.model.UserData
-import org.blockstack.android.sdk.model.toBlockstackConfig
+    import org.blockstack.android.sdk.model.toBlockstackConfig
-import org.blockstack.android.sdk.ui.SignInProvider
+    import org.blockstack.android.sdk.ui.SignInProvider
-import org.blockstack.android.sdk.ui.showBlockstackConnect
+    import org.blockstack.android.sdk.ui.showBlockstackConnect
-
+
-class MainActivity : AppCompatActivity(), SignInProvider {
+    class MainActivity : AppCompatActivity(), SignInProvider {
 
         private lateinit var blockstackSession: BlockstackSession
         private lateinit var blockstackSignIn: BlockstackSignIn
@@ -577,9 +576,8 @@ class MainActivity : AppCompatActivity(), SignInProvider {
             return blockstackSignIn
         }
 
-}
+    }
-
+   ```
-```
 
 ### Run the final app in the emulator
 
@@ -591,7 +589,7 @@ class MainActivity : AppCompatActivity(), SignInProvider {
 ![](images/connect-ui.png)
 
 5. Select **Get Started**
-The system might prompt you how to select a browser.
+   The system might prompt you how to select a browser.
 
 6. Work through the Blockstack prompts to login.
 7. Blockstack redirects you to a web site. Open it with your Android app: Select **Hello Android** and **Always**
@@ -607,4 +605,3 @@ The system might prompt you how to select a browser.
 Congratulations, you've completed your Android app using the Blockstack Android SDK.
 
 Learn more about Blockstack by [trying another tutorial](https://blockstack.org/tutorials).
-```