Update submodule reference to caravel-lite

.gitmodules

diff --git a/.gitmodules b/.gitmodules
index 5bdfdae..c73b442 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
-[submodule "caravel"]
+[submodule "caravel-lite"]
 	path = caravel
-	url = https://github.com/efabless/caravel
+	url = https://github.com/efabless/caravel-lite

README.md

diff --git a/README.md b/README.md
index 7f8d547..5e01221 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,9 @@
 ## Please fill in your project documentation in this README.md file 
 
 
+:warning: | Use this sample project for analog user projects. 
+:---: | :---
+
 ---
 
 Refer to [README](docs/source/index.rst) for this sample project documentation. 

caravel

diff --git a/caravel b/caravel
index 1f8e846..6c9510b 160000
--- a/caravel
+++ b/caravel
@@ -1 +1 @@
-Subproject commit 1f8e8466fad1b08fa9a9f0bed49942d4035ebb27
+Subproject commit 6c9510b578d9ffb1420d7d2c3a1bc988948f5283