prepare how-to support

app/src/main/java/app/fedilab/nitterizeme/AboutActivity.java

@@ -104,6 +104,12 @@ public class AboutActivity extends AppCompatActivity {
             startActivity(browserIntent);
         });
 
+        Button how_to = findViewById(R.id.how_to);
+        how_to.setOnClickListener(v -> {
+            Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("https://fedilab.app/wiki/nitterizeme/"));
+            startActivity(browserIntent);
+        });
+
         TextView license = findViewById(R.id.license);
         content = new SpannableString(license.getText().toString());
         content.setSpan(new ForegroundColorSpan(ContextCompat.getColor(AboutActivity.this,R.color.colorAccent)), 0, content.length(), 0);
@@ -113,10 +119,9 @@ public class AboutActivity extends AppCompatActivity {
             Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.gnu.org/licenses/quick-guide-gplv3.fr.html"));
             startActivity(browserIntent);
         });
-
-
     }
 
+
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         if (item.getItemId() == android.R.id.home) {

app/src/main/java/app/fedilab/nitterizeme/MainActivity.java

@@ -36,7 +36,6 @@ import android.view.MenuItem;
 import android.view.View;
 import android.widget.Button;
 import android.widget.CheckBox;
-import android.widget.CompoundButton;
 import android.widget.ImageButton;
 import android.widget.TextView;
 

app/src/main/res/layout/activity_about.xml

@@ -174,6 +174,30 @@
         </LinearLayout>
 
 
+        <TextView
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Wiki"
+            tools:ignore="HardcodedText" />
+
+        <Button
+            style="@style/Widget.AppCompat.Button.Colored"
+            android:textColor="@android:color/white"
+            android:layout_marginTop="10dp"
+            android:layout_gravity="center"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/how_to"
+            android:paddingRight="30dp"
+            android:paddingStart="30dp"
+            android:paddingEnd="30dp"
+            android:paddingLeft="30dp"
+            android:id="@+id/how_to"
+            android:layout_marginStart="10dp"
+            android:layout_marginLeft="10dp"
+            android:layout_marginBottom="20dp"
+            />
+
         <!-- About the app -->
         <TextView
             android:layout_margin="10dp"

app/src/main/res/values/strings.xml

@@ -30,4 +30,5 @@
     <string name="display_supported_links">Display supported links</string>
     <string name="hide_supported_links">Hide supported links</string>
     <string name="use_geo_uri">Use geo URI</string>
+    <string name="how_to">How-to</string>
 </resources>