Add demo from PhilJay/MPAndroidChart#2692, remove "label" from parameter name as it also includes "lines" now

Author: papjul

MPChartExample/src/main/AndroidManifest.xml

@@ -51,6 +51,7 @@
         <activity android:name="BarChartPositiveNegative" />
         <activity android:name="FilledLineActivity" />
         <activity android:name="HalfPieChartActivity" />
+        <activity android:name="SpecificPositionsLineChartActivity" />
     </application>
 
 </manifest>