Fixed two typos (#322)

Author: davidbrochart

docs/basics.rst

@@ -15,7 +15,7 @@ To install AnyIO, run:
 
     pip install anyio
 
-To install a supported version of trio_, you can use install it as an extra like this:
+To install a supported version of trio_, you can install it as an extra like this:
 
 .. code-block:: bash
 

docs/tasks.rst

@@ -74,7 +74,7 @@ This can be done with :meth:`TaskGroup.start() <.abc.TaskGroup.start>`::
     run(main)
 
 The target coroutine function **must** call ``task_status.started()`` because the task that is
-calling will :meth:`TaskGroup.start() <.abc.TaskGroup.start>` will be blocked until then. If the
+calling with :meth:`TaskGroup.start() <.abc.TaskGroup.start>` will be blocked until then. If the
 spawned task never calls it, then the :meth:`TaskGroup.start() <.abc.TaskGroup.start>` call will
 raise a ``RuntimeError``.