Add content to android roadmap (#6553)

* [Add] Android Roadmap: Toast and TextView

* [Change] Remove examples

* Update src/data/roadmaps/android/content/textview@znvZp24L-PcQwkSObtixs.md

* Update src/data/roadmaps/android/content/toast@BVgO9n7tGlVdiS72-hFSd.md

---------

Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>

src/data/roadmaps/android/content/textview@znvZp24L-PcQwkSObtixs.md

@@ -0,0 +1,7 @@
+# TextView
+
+TextView is a widget that is seen in every android application. This widget is used to display simple text within the android application.
+
+Visit the following resources to learn more:
+
+- [@article@Android developers: TextView](https://developer.android.com/reference/android/widget/TextView)

src/data/roadmaps/android/content/toast@BVgO9n7tGlVdiS72-hFSd.md

@@ -0,0 +1,7 @@
+# Toast
+
+A `toast` provides simple feedback about an operation in a small popup. It only fills the amount of space required for the message and the current activity remains visible and interactive. Toasts automatically disappear after a timeout.
+
+Visit the following resources to learn more:
+
+- [@article@Android developers: Toast](https://developer.android.com/guide/topics/ui/notifiers/toasts)