Release 108 notes typo fixes

Signed-off-by: Jan Richter <[email protected]>

docs/source/releases/108_0.rst

@@ -15,10 +15,10 @@ Users/Test Writers
   `exec-runnables-recipe`. It allows a user to point to a file that
   will be executed, and that is expected to generate (on its ``STDOUT``)
   content compatible with the Runnable recipe format. More info
-  abotu this new featrue can be found in `documentaion 
+  about this new featrue can be found in `documentaion
   <https://avocado-framework.readthedocs.io/en/latest/guides/writer/chapters/recipes.html#using-dynamically-generated-recipes>`_
 
-* Documentaion about avocado-instrumented test lifecycle has been `improved
+* Documentation about avocado-instrumented test lifecycle has been `improved
   <https://avocado-framework.readthedocs.io/en/latest/guides/reference/chapters/avocado_instrumented.html>`_
 
 Utility Modules