include suggestions by Carmen and Torsten from git pull issue

campaigns/android/android.en.xhtml

@@ -85,7 +85,7 @@
         Most mobile devices are not controlled by the users, but by the manufacturer
         and the operator. The software that runs on them is not Free Software.
         Even Android phones ship with non-free software and proprietary add-ons
-        that usually do not work in the full interest of the user. Software
+        that often work against in the full interest of the user. Software
         updates will only be made available as long as the manufacturer still has a
         commercial interest in your device. The applications (apps) available
         from the official market are commonly non-free. Nobody is

campaigns/android/liberate.en.xhtml

@@ -53,7 +53,7 @@
       <h2 id="Apps">The Apps</h2>
       
       <p>
-        For most people, the <a href="https://market.android.com/">Google
+        For most people, the <a href="https://play.google.com/">Google
         Play Store</a> is the only or the main source for their
         applications. It doesn't even tell you whether an app is Free Software
         or not, let alone its license. Unfortunately, most apps from this or
@@ -99,8 +99,8 @@
     
     <p>
       Nowadways, we fortunately live in a world in which we can choose from
-      various Free Software apps for almost any use case. However, this sections aims
-      to present a small selection of apps which we made good experiences with for
+      various Free Software apps for almost any use case. This sections aims
+      to present a small selection of apps which are fitting for
       starters. By no means can such a list be ever perfect for every individual
       case. We also recommend you to look at the complete <a
       href="https://f-droid.org/packages/">F-Droid repository</a> or app
@@ -176,7 +176,7 @@
       knows public transportation networks of countries and cities all
       over the world. <a
       href="https://f-droid.org/packages/net.osmand.plus/">OsmAnd</a>
-      serves detailled offline and online maps of whereever you are
+      serves detailed offline and online maps of whereever you are
       right now, and also includes navigation when riding your bicycle
       or car.
     </p>