add virsh.sh aliases; update README

kvm/etc-profile.d-virsh.sh

@@ -0,0 +1,27 @@
+# Aliases for virsh
+vlist() {
+  /usr/bin/virsh --connect qemu:///system list --all
+}
+vstart() {
+  /usr/bin/virsh --connect qemu:///system start $1
+}
+vsave() {
+  /usr/bin/virsh --connect qemu:///system managedsave $1 --running
+}
+vstop() {
+  /usr/bin/virsh --connect qemu:///system shutdown $1
+}
+vkill() {
+  /usr/bin/virsh --connect qemu:///system destroy $1
+}
+vconsole() {
+    /usr/bin/virsh --connect qemu:///system console $1
+}
+vrm() {
+    echo "This will completely remove $1 and its associated storage."
+    read -r -p "Are you sure? (y/N) " ans
+    echo
+    if [[ "$ans" =~ ^[Yy]$ ]]; then
+        /usr/bin/virsh --connect qemu:///system undefine --nvram --remove-all-storage $1
+    fi
+}