Documentation/rv: Fix typos

There are some typos in the documentation: 'a' -> 'at', missing 'to'.
Fix them.

Signed-off-by: Andrew Kreimer <[email protected]>
Acked-by: Steven Rostedt (Google) <[email protected]>
Signed-off-by: Jonathan Corbet <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: algonell

Documentation/trace/rv/runtime-verification.rst

@@ -8,14 +8,14 @@ checking* and *theorem proving*) with a more practical approach for complex
 systems.
 
 Instead of relying on a fine-grained model of a system (e.g., a
-re-implementation a instruction level), RV works by analyzing the trace of the
+re-implementation at instruction level), RV works by analyzing the trace of the
 system's actual execution, comparing it against a formal specification of
 the system behavior.
 
 The main advantage is that RV can give precise information on the runtime
 behavior of the monitored system, without the pitfalls of developing models
 that require a re-implementation of the entire system in a modeling language.
-Moreover, given an efficient monitoring method, it is possible execute an
+Moreover, given an efficient monitoring method, it is possible to execute an
 *online* verification of a system, enabling the *reaction* for unexpected
 events, avoiding, for example, the propagation of a failure on safety-critical
 systems.