Update README.md

Author: JustinGeorgeJoseph

README.md

@@ -101,6 +101,66 @@ app:chart_bar_tooltip_title_text_color="@color/white" //[color] - tooltip title
 app:chart_bar_tooltip_title_text_family="@font/rubik_medium" //[Font] - tooltip title font family
 ```
 
+
+### Set graph values
+```
+findViewById<PopupBarChart>(R.id.customBarchart).apply {
+            setGraphValues(
+                arrayListOf(
+                    GraphValue(
+                        day = 1,
+                        id = 1,
+                        progress = 30,
+                        isToday = false,
+                        showToolTip = false
+                    ),
+                    GraphValue(
+                        day = 2,
+                        id = 2,
+                        progress = 70,
+                        isToday = false,
+                        showToolTip = false
+                    ),
+                    GraphValue(
+                        day = 3,
+                        id = 3,
+                        progress = 100,
+                        isToday = false,
+                        showToolTip = false
+                    ),
+                    GraphValue(
+                        day = 4,
+                        id = 4,
+                        progress = 0,
+                        isToday = false,
+                        showToolTip = false
+                    ),
+                    GraphValue(
+                        day = 5,
+                        id = 5,
+                        progress = 50,
+                        isToday = false,
+                        showToolTip = false
+                    ),
+                    GraphValue(
+                        day = 6,
+                        id = 6,
+                        progress = 50,
+                        isToday = false,
+                        showToolTip = false
+                    ),
+                    GraphValue(
+                        day = 7,
+                        id = 7,
+                        progress = 25,
+                        isToday = false,
+                        showToolTip = false
+                    ),
+                )
+            )
+        }
+```
+
 # License
 ```xml
 Copyright 2022 JustinGeorgeJoseph (Justin George)