doc: Fix a few mistakes

- Fix typos in doc/flatpak-install and doc/flatpak-update.

- The commands ending in -app were deprecated in commit f7a1fdaa,
so update a few remaining references to them.

- flatpak-update is used for runtimes and applications, so fix its short
description.

1 files changed, 4 insertions, 4 deletions

diff --git a/doc/flatpak-update.xml b/doc/flatpak-update.xml
index 3dc02a4e..e387c35e 100644
--- a/doc/flatpak-update.xml
+++ b/doc/flatpak-update.xml
@@ -25,7 +25,7 @@
 
     <refnamediv>
         <refname>flatpak-update</refname>
-        <refpurpose>Update a runtime</refpurpose>
+        <refpurpose>Update an application or runtime</refpurpose>
     </refnamediv>
 
     <refsynopsisdiv>
@@ -58,7 +58,7 @@
             with the --commit option.
         </para>
         <para>
-            Note that updating a is different from installing
+            Note that updating a runtime is different from installing
             a different branch, and runtime updates are expected to keep
             strict compatibility. If an application update does cause
             a problem, it is possible to go back to the previous
@@ -209,8 +209,8 @@
 
         <para>
             <citerefentry><refentrytitle>flatpak</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
-            <citerefentry><refentrytitle>flatpak-install-app</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
-            <citerefentry><refentrytitle>flatpak-list-apps</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+            <citerefentry><refentrytitle>flatpak-install</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+            <citerefentry><refentrytitle>flatpak-list</refentrytitle><manvolnum>1</manvolnum></citerefentry>
         </para>
 
     </refsect1>