First take at creating the enterprise code rulesets docs content. (#53432)

Co-authored-by: Isaac Brown <101839405+isaacmbrown@users.noreply.github.com>
Co-authored-by: isaacmbrown <isaacmbrown@github.com>

data/features/enterprise-code-rulesets.yml

@@ -0,0 +1,4 @@
+# Reference: #16569
+# Enterprise code rulesets
+versions:
+  ghec: '*'

data/reusables/repositories/create-ruleset-step.md

@@ -1,7 +1,6 @@
 {%- ifversion push-rulesets %}
 1. Click **New ruleset**.
-1. To create a ruleset targeting branches, click **New branch ruleset**.
-1. Alternatively, to create a ruleset targeting tags, click **New tag ruleset**.
+1. To create a ruleset targeting branches, click **New branch ruleset**. Alternatively, to create a ruleset targeting tags, click **New tag ruleset**.
 {% else %}
 1. You can create a ruleset targeting branches, or a ruleset targeting tags.
    * To create a ruleset targeting branches, click **New branch ruleset**.

data/reusables/repositories/import-a-ruleset-conceptual.md

@@ -1 +1 @@
-You can import a ruleset from another repository or organization using a JSON file. This can be useful if you want to apply the same ruleset to multiple repositories or organizations.
+You can import an existing ruleset using a JSON file. This can be useful if you want to apply the same ruleset to multiple repositories or organizations.

data/reusables/repositories/push-rules-fork-network-note.md

@@ -1,2 +1,2 @@
 > [!NOTE]
-> This ruleset will enforce push restrictions for this repository's entire fork network.
+> This ruleset will enforce push restrictions for a repository's entire fork network.