Updated ImGui Widgets (markdown)

ImGui-Widgets.md

@@ -1,4 +1,14 @@
 # Text
+## ImGui::Text
+
+Outputs a formatted text. The format options is like `printf`
+
+### Input
+
+### Example
+```c++
+ImGui::Text("Hello world %f", 42);
+```
 
 # Main