README: cleanup

Add note about rust.

Signed-off-by: Armin Kuster <akuster808@gmail.com>

README

@@ -11,28 +11,19 @@ This layer depends on:
 
   URI: git://git.openembedded.org/openembedded-core
   branch: master
-  revision: HEAD
-  prio: default
 
   URI: git://git.openembedded.org/meta-openembedded/meta-oe
   branch: master
-  revision: HEAD
-  prio: default
 
   URI: git://git.openembedded.org/meta-openembedded/meta-perl
   branch: master
-  revision: HEAD
-  prio: default
 
   URI: git://git.openembedded.org/meta-openembedded/meta-python
   branch: master
-  revision: HEAD
-  prio: default
 
   URI: git://git.openembedded.org/meta-openembedded/meta-networking
   branch: master
-  revision: HEAD
-  prio: default
+
 
 Adding the security layer to your build
 ========================================
@@ -51,11 +42,23 @@ other layers needed. e.g.:
     /path/to/meta-openembedded/meta-perl \
     /path/to/meta-openembedded/meta-python \
     /path/to/meta-openembedded/meta-networking \
-    /path/to/layer/meta-security \
+    /path/to/layer/meta-security "
+
+Optional Rust dependancy
+======================================
+If you want to use the latest Suricata that needs rust, you will need to clone
+
+  URI: https://github.com/meta-rust/meta-rust.git
+  branch: master
+
+  BBLAYERS += "/path/to/layer/meta-rust"
+
+This will activate the dynamic-layer mechanism and pull in the newer suricata
+
 
 
 Maintenance
------------
+======================================
 
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