Fixes and tweaks

Author: javiereguiluz

components/uid.rst

@@ -44,9 +44,11 @@ to create each type of UUID:
         It's recommended to use UUIDv7 instead of UUIDv1 because it provides
         better entropy.
 
-**UUID v2** (DCE Security)
+**UUID v2** (DCE security)
     Similar to UUIDv1 but with a very high likelihood of ID collision
     (`read UUIDv2 spec <https://datatracker.ietf.org/doc/html/draft-ietf-uuidrev-rfc4122bis#name-uuid-version-2>`__).
+    It's part of the authentication mechanism of DCE (Distributed Computing Environment)
+    and the UUID includes the POSIX UIDs (user/group ID) of the user who generated it.
     This UUID variant is **not implemented** by the Uid component.
 
 **UUID v3** (name-based, MD5)
@@ -91,7 +93,7 @@ to create each type of UUID:
     This makes it more secure and less prone to hash collisions.
 
 **UUID v6** (reordered time-based)
-    It rearranges the time-based fields of the UUID to make it lexicographically
+    It rearranges the time-based fields of the UUIDv1 to make it lexicographically
     sortable (like :ref:`ULIDs <ulid>`). It's more efficient for database indexing
     (`read UUIDv6 spec <https://datatracker.ietf.org/doc/html/draft-ietf-uuidrev-rfc4122bis#name-uuid-version-6>`__)::