Switch to https for most links
Update obsolete links (groups, android doc on code.google.com)
Update instructions related to groups
Change-Id: I29a50cb5f026f0e1e00f2d2aadcfa2a138a96a03
diff --git a/src/source/overview.md b/src/source/overview.md
index 34ef955..804c1f0 100644
--- a/src/source/overview.md
+++ b/src/source/overview.md
@@ -16,27 +16,27 @@
# Android Platform Overview #
-Our sister site, [developer.android.com](http://developer.android.com/),
+Our sister site, [developer.android.com](https://developer.android.com/),
includes feature overviews of the various Android platform versions.
The links below will take you to developer.android.com where you can view this
information.
The links below will navigate you away from this site.
-## [Android 4.0](http://developer.android.com/sdk/android-4.0-highlights.html) ##
+## [Android 4.0](https://developer.android.com/sdk/android-4.0-highlights.html) ##
Android 4.0 corresponded to the "IceCreamSandwich" milestone branch, and has an API level of 14.
-## [Android 2.3](http://developer.android.com/sdk/android-2.3-highlights.html) ##
+## [Android 2.3](https://developer.android.com/sdk/android-2.3-highlights.html) ##
Android 2.3 corresponded to the "Gingerbread" milestone branch, and has an API level of 9.
In versions 2.3.3 and higher, the API level is 10.
-## [Android 2.2](http://developer.android.com/sdk/android-2.2-highlights.html) ##
+## [Android 2.2](https://developer.android.com/sdk/android-2.2-highlights.html) ##
Android 2.2 corresponded to the "FroYo" milestone branch, and has an API level of 8.
-## [Android 2.1](http://developer.android.com/sdk/android-2.0-highlights.html) ##
+## [Android 2.1](https://developer.android.com/sdk/android-2.0-highlights.html) ##
Android 2.1 corresponded to the "Eclair" milestone branch, and has an API level of 7.
@@ -48,16 +48,16 @@
2.1. (The linked document refers to Android 2.0, because there were
no new platform features added in 2.1.)
-## [Android 1.6](http://developer.android.com/sdk/android-1.6-highlights.html) ##
+## [Android 1.6](https://developer.android.com/sdk/android-1.6-highlights.html) ##
Android 1.6 corresponded to the "Donut" milestone branch, and has an API level of 4.
-## [Android 1.5](http://developer.android.com/sdk/android-1.5-highlights.html) ##
+## [Android 1.5](https://developer.android.com/sdk/android-1.5-highlights.html) ##
Android 1.5 corresponded to the "Cupcake" milestone branch, and has an API
level of 3.
-## [Android 1.1](http://developer.android.com/sdk/android-1.1.html) ##
+## [Android 1.1](https://developer.android.com/sdk/android-1.1.html) ##
Android 1.1 has an API level of 2. Android 1.1 was known as
"Petit Four" internally, though this name was not used officially.