tools/examples: Move readmes and examples to subdirectory docs

Signed-off-by: Fabio Fantoni <fabio.fantoni@xxxxxxxxxx>

diff --git a/tools/examples/Makefile b/tools/examples/Makefile
index 8cea724..be71872 100644
--- a/tools/examples/Makefile
+++ b/tools/examples/Makefile
@@ -7,20 +7,20 @@ XENDOMAINS_INITD = init.d/xendomains
 XENDOMAINS_SYSCONFIG = init.d/sysconfig.xendomains
 
 # Xen configuration dir and configs to go there.
-XEN_READMES = README
-XEN_READMES += README.incompatibilities
+XEN_DOCS = README
+XEN_DOCS += README.incompatibilities
 XEN_CONFIGS = xend-config.sxp
 XEN_CONFIGS += xm-config.xml
-XEN_CONFIGS += xmexample1 
-XEN_CONFIGS += xmexample2
-XEN_CONFIGS += xmexample3
-XEN_CONFIGS += xmexample.hvm
-XEN_CONFIGS += xmexample.hvm-stubdom
-XEN_CONFIGS += xmexample.pv-grub
-XEN_CONFIGS += xmexample.nbd
-XEN_CONFIGS += xmexample.vti
-XEN_CONFIGS += xlexample.hvm
-XEN_CONFIGS += xlexample.pvlinux
+XEN_DOCS += xmexample1 
+XEN_DOCS += xmexample2
+XEN_DOCS += xmexample3
+XEN_DOCS += xmexample.hvm
+XEN_DOCS += xmexample.hvm-stubdom
+XEN_DOCS += xmexample.pv-grub
+XEN_DOCS += xmexample.nbd
+XEN_DOCS += xmexample.vti
+XEN_DOCS += xlexample.hvm
+XEN_DOCS += xlexample.pvlinux
 XEN_CONFIGS += xend-pci-quirks.sxp
 XEN_CONFIGS += xend-pci-permissive.sxp
 XEN_CONFIGS += xl.conf
@@ -33,15 +33,17 @@ all:
 build:
 
 .PHONY: install
-install: all install-readmes install-configs $(HOTPLUGS)
+install: all install-docs install-configs $(HOTPLUGS)
 
-.PHONY: install-readmes
-install-readmes:
+.PHONY: install-docs
+install-docs:
 	[ -d $(DESTDIR)$(XEN_CONFIG_DIR) ] || \
 		$(INSTALL_DIR) $(DESTDIR)$(XEN_CONFIG_DIR)
-	set -e; for i in $(XEN_READMES); \
-	    do [ -e $(DESTDIR)$(XEN_CONFIG_DIR)/$$i ] || \
-	    $(INSTALL_DATA) $$i $(DESTDIR)$(XEN_CONFIG_DIR); \
+	[ -d $(DESTDIR)$(XEN_CONFIG_DIR)/docs ] || \
+		$(INSTALL_DIR) $(DESTDIR)$(XEN_CONFIG_DIR)/docs
+	set -e; for i in $(XEN_DOCS); \
+	    do [ -e $(DESTDIR)$(XEN_CONFIG_DIR)/docs/$$i ] || \
+	    $(INSTALL_DATA) $$i $(DESTDIR)$(XEN_CONFIG_DIR)/docs/; \
 	done
 
 .PHONY: install-configs