revert disabled_features.md to previous wording.

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

docs/disabled_features.md

@@ -5,22 +5,18 @@ sort_rank: 10
 
 # Disabled Features
 
-These features are disabled by default since they are breaking changes or are
-considered experimental.  As their behavior may change in future releases,
-all feature changes are communicated via the [release
-changelog](https://github.com/prometheus/prometheus/blob/master/CHANGELOG.md).
+Here is a list of features that are disabled by default since they are breaking changes or are considered experimental.
+Their behaviour can change in future releases which will be communicated via the [release changelog](https://github.com/prometheus/prometheus/blob/main/CHANGELOG.md).
 
-One can enable one or more features using the `--enable-feature` flag with a
-single feature or a comma-separated list of features. In future releases,
-features may be enabled by default.
+You can enable them using the `--enable-feature` flag with a comma separated list of features.
+They may be enabled by default in future versions.
 
 ## `@` Modifier in PromQL
 
 `--enable-feature=promql-at-modifier`
 
-The `@` modifier lets one specify the evaluation time for instant vector
-selectors, range vector selectors, and subqueries. More details can be found
-[here](querying/basics.md#-modifier).
+The `@` modifier lets you specify the evaluation time for instant vector selectors,
+range vector selectors, and subqueries. More details can be found [here](querying/basics.md#modifier).
 
 ## Negative offset in PromQL