doc: relocate screenshots and logo

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

README.md

@@ -1,5 +1,5 @@
 [![License Badge][]][License] [![GitHub Status][]][GitHub] [![Coverity Status][]][Coverity Scan]
-<img align="right" src="img/finit3.png" alt="Finit: Fast Init">
+<img align="right" src="doc/img/finit3.png" alt="Finit: Fast Init">
 
 Finit is an alternative to [SysV init](https://en.wikipedia.org/wiki/Init)
 and [systemd](https://www.freedesktop.org/wiki/Software/systemd/), focused
@@ -14,7 +14,7 @@ For detailed information, explore our extensive documentation
 :books: **<https://troglobit.github.io/finit/>**
 
 <div align="center">
-  <img src="img/alpine-screenshot2.png" alt="Alpine screenshot"><br/>
+  <img src="doc/img/alpine-screenshot2.png" alt="Alpine screenshot"><br/>
 </div>
 
 For working examples, see the :rocket: [contrib/](contrib/) section or these

doc/Makefile.am

@@ -1,11 +1,10 @@
-SUBDIRS = config
-
-docsdir   := @docdir@/doc
-docs_DATA  = README.md build.md cmdline.md commands.md		\
-	     conditions.md distro.md example.md features.md	\
-	     index.md initctl.md keventd.md plugins.md		\
-	     requirements.md runlevels.md runparts.md		\
-	     service.md signals.md state-machine.md		\
-	     watchdog.md					\
-	     logo.png svc-machine.png svc-machine.svg
-EXTRA_DIST = $(docs_DATA)
+SUBDIRS         = config
+docsdir        := @docdir@/doc
+dist_docs_DATA  = README.md build.md cmdline.md commands.md		\
+		  conditions.md distro.md example.md features.md	\
+		  index.md initctl.md keventd.md plugins.md		\
+		  requirements.md runlevels.md runparts.md		\
+		  service.md signals.md state-machine.md		\
+		  watchdog.md
+dist_docs_DATA += logo.png svc-machine.png svc-machine.svg		\
+		  img/alpine-screenshot2.png