small suggested changes

Signed-off-by: schou <pschou@users.noreply.github.com>

docs/disabled_features.md

@@ -23,7 +23,7 @@ range vector selectors, and subqueries. More details can be found [here](queryin
 `--enable-feature=promql-negative-offset`
 
 In contrast to the positive offset modifier, the negative offset modifier lets
-one shift a vector into the past.  An example in which one may want to use a
+one shift a vector into the future.  An example in which one may want to use a
 negative offset is reviewing past data and making temporal comparisons with
 more recent data.
 

docs/querying/basics.md

@@ -209,7 +209,7 @@ can be specified:
 
     rate(http_requests_total[5m] offset -1w)
 
-This negative offset has been disabled by default since it breaks the invariant
+This negative offset is disabled by default since it breaks the invariant
 that PromQL does not look ahead of the evaluation time for samples. This feature
 is enabled by setting `--enable-feature=promql-negative-offset` flag. See
 [disabled features](../disabled_features.md) for more details about this flag.