fix typo a actvity

Signed-off-by: Christian Loehle <cloehle@posteo.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/README.md b/README.md
index 121f92c..d6e493c 100644
--- a/README.md
+++ b/README.md
@@ -106,7 +106,7 @@ Intent result = api.executeApi(data, is, os);
     * ``OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED``
 
     If ``RESULT_CODE_USER_INTERACTION_REQUIRED`` is returned, an additional ``PendingIntent`` is returned to the client, which must be used to get user input required to process the request.
-    A ``PendingIntent`` is executed with ``startIntentSenderForResult``, which starts a activity, originally belonging to OpenKeychain, on the [task stack](http://developer.android.com/guide/components/tasks-and-back-stack.html) of the client.
+    A ``PendingIntent`` is executed with ``startIntentSenderForResult``, which starts an activity, originally belonging to OpenKeychain, on the [task stack](http://developer.android.com/guide/components/tasks-and-back-stack.html) of the client.
     Only if ``RESULT_CODE_SUCCESS`` is returned, ``os`` actually contains data.
     A nearly complete example looks like this:
     ```java