Update INSTALL and fix a bug...

Filled out INSTALL.  Told git to ignore a local favicon.  Fixed layout
links to reset the page number.

.gitignore

@@ -1 +1,2 @@
 local-override.yml
+public/favicon.ico

INSTALL

@@ -0,0 +1,155 @@
+There are numerous ways of deploying a Mojolicious app, so this
+is just one way.
+
+0. Dependencies
+
+libmojolicious-perl
+pgc-db <https://tildegit.org/barnold/pgc-db>
+
+1. Create a user to run the perl process.
+
+The name is at your discretion, here I'm using pgc-www.
+
+   # adduser --no-create-home --home /var/www \
+      --shell /usr/sbin/nologin --disabled-login pgc-www
+
+2. Configure postgres.
+
+Create a postgres user for pgc-www.
+
+   # su - postgres
+   $ createuser --connection-limit=10 --role=pgc_user pgc-www
+
+If you're using the simplest case, 'peer' authentication, then add a
+line in pg_ident.conf into the map you used for pgc-db.
+
+   # MAPNAME       SYSTEM-USERNAME         PG-USERNAME
+   ...             ...                     ...
+   irulanmap       pgc-www                 pgc-www
+
+Tell postgres about your edit.
+
+   # systemctl reload postgresql
+
+At this point, pgc-www should have access to the database.  Test with
+
+   # sudo -u pgc-www psql pg_book_catalog
+
+3. Install the source code.
+
+   # cd /opt
+   # git clone https://tildegit.org/barnold/pgc-www.git
+
+At this point, the user 'pgc-www' should be able to run the app.  Test with
+
+   # sudo -u pgc-www morbo /opt/pgc-www/script/my_app
+
+and visit <http://localhost:3000> in your browser.
+
+4. Optionally, provide a contact email address to site visitors.
+
+Add /opt/pgc-www/local-override.yml containing e.g.
+
+   email-address: webmaster@example.net?Subject=Love your site!
+   email-name: webmaster@example.net
+
+Likewise, you can place your own favicon.ico into public/.
+
+After you restart the app, your address should appear on the 'about' page
+and your favicon should appear instead of Mojolicious's.
+
+5. Configure systemd to run the app under fastcgi, via socket activation.
+
+Suggested unit files follow, to go into /etc/systemd/system.
+
+= pgc.socket ================================
+[Unit]
+Description = PG Catalog socket
+PartOf = pgc.service
+
+[Socket]
+Accept = false
+ListenStream = 127.0.0.1:8080
+RestrictAddressFamilies = AF_INET
+
+[Install]
+WantedBy = sockets.target
+=============================================
+= pgc.service ===============================
+# After edit, check syntax with
+#
+#    systemd-analyze verify /etc/systemd/system/pgc.service
+#
+# and load the change with
+#
+#    systemctl daemon-reload
+
+[Unit]
+Description = PG Catalog
+Requires = pgc.socket
+
+[Service]
+User = pgc-www
+Type = simple
+Environment = MOJO_MODE="production"
+ExecStart = /opt/pgc-www/script/my_app fastcgi
+StandardInput = socket
+StandardError = journal
+
+CapabilityBoundingSet =
+LockPersonality = yes
+MemoryDenyWriteExecute = yes
+NoNewPrivileges = yes
+PrivateDevices = yes
+PrivateNetwork = yes
+PrivateTmp = yes
+PrivateUsers = yes
+ProcSubset = pid
+ProtectClock = yes
+ProtectControlGroups = yes
+ProtectHome = yes
+ProtectHostname = yes
+ProtectKernelLogs = yes
+ProtectKernelModules = yes
+ProtectKernelTunables = yes
+ProtectProc = invisible
+ProtectSystem = strict
+RemoveIPC = yes
+RestrictAddressFamilies = AF_UNIX
+RestrictNamespaces = yes
+RestrictRealtime = yes
+RestrictSUIDSGID = yes
+SystemCallArchitectures = native
+SystemCallFilter = @system-service
+SystemCallFilter = ~ @privileged @resources
+UMask = 0066
+
+[Install]
+WantedBy = default.target
+=============================================
+
+Run
+
+   # systemctl daemon-reload
+   # systemctl start pgc.socket
+   
+You can apply resource limits by running
+
+   # systemctl set-property pgc.socket \
+      IPAddressAllow=localhost IPAddressDeny=any
+   
+   # systemctl set-property pgc.service \
+      CPUQuota=50% CPUWeight=50 MemoryHigh=128M MemoryMax=256M
+
+(The values for pgc.service are wild guesses.)
+
+Enable the service to start on boot.
+
+   # systemctl enable pgc.socket
+
+6. Configure your web server
+
+I use lighttpd and followed the guidance in
+<https://github.com/mojolicious/mojo/wiki/Deploying-on-Lighttpd-with-FastCGI>.
+
+Comments and questions are welcome at <barnold@tilde.club>.

README

@@ -1,9 +1,9 @@
 ABOUT
 
 This is a Mojolicious web site app for looking through the catalog
-provided by Project Gutenberg <https://www.gutenberg.org/>.  It uses
-the database and perl modules provided by
-<https://tildegit.org/barnold/pgc-db>.
+provided by Project Gutenberg <https://www.gutenberg.org/>.  It has no
+affiliation with Project Gutenberg, it just gratefully uses the
+catalog they provide.
 
 COPYING
 
@@ -12,4 +12,3 @@ Public License, version 3
 <https://www.gnu.org/licenses/agpl-3.0.html>.
 
 Comments are welcome at <barnold@tilde.club>.
-

templates/layouts/default.html.ep

@@ -12,11 +12,11 @@
       </li>
 
       <li>
-      <%= link_to("Authors" => 'authors') %>
+      <%= link_to("Authors" => 'authors', { page_number => 1}) %>
       </li>
 
       <li>
-      <%= link_to("Books" => 'books') %>
+      <%= link_to("Books" => 'books', { page_number => 1 }) %>
       </li>
 
       <li>