doc: git-push: update intro

- Avoid unnecessary jargon ("refs")
- Move down the reference to hooks, it's less important than the
  command's basic usage

Signed-off-by: Julia Evans <[email protected]>

Author: jvns

Documentation/git-push.adoc

@@ -19,12 +19,8 @@ SYNOPSIS
 DESCRIPTION
 -----------
 
-Updates remote refs using local refs, while sending objects
-necessary to complete the given refs.
-
-You can make interesting things happen to a repository
-every time you push into it, by setting up 'hooks' there.  See
-documentation for linkgit:git-receive-pack[1].
+Updates one or more branches, tags, or other references in a remote
+repository from your local repository.
 
 When the command line does not specify where to push with the
 `<repository>` argument, `branch.*.remote` configuration for the
@@ -44,6 +40,9 @@ corresponding upstream branch, but as a safety measure, the push is
 aborted if the upstream branch does not have the same name as the
 local one.
 
+You can make interesting things happen to a repository
+every time you push into it, by setting up 'hooks' there.  See
+documentation for linkgit:git-receive-pack[1].
 
 OPTIONS[[OPTIONS]]
 ------------------