diff --git a/README.md b/README.md
index 71628b46..61fc42d4 100644
--- a/README.md
+++ b/README.md
@@ -6,16 +6,34 @@ Splines
 ``Splines`` is a set of C++ classes (with MATLAB mex interface) which
 implements various spline interpolation.
 
-- Online documentation http://ebertolazzi.github.io/Splines/
+The library contains the following objects:
 
-To setup submodules
+- Univariate curve
+  - Linear Spline
+  - Akima spline
+  - Bessel spline
+  - Cubic spline
+  - Hermite spline
+  - Pchic non oscillatory spline
+  - Quintic spline
+- Bivariate spline (surface)
+  - Bilinear spline
+  - Cubic
+  - Quintic
+
+Library is written in `C++11` with a `MATLAB` mex interface.
+Thus can be used in fast compiled application or in `MATLAB` scripts.
+
+To compile the `C++11` library the easy way require `cmake` and `rake`
 
 ```
 ruby setup.rb
 ```
 
-to compile
+then
 
 ```
 rake
 ```
+
+for more details see: **online documentation** at http://ebertolazzi.github.io/Splines/
\ No newline at end of file
diff --git a/docs_build/project_common.py b/docs_build/project_common.py
index a5fdb517..07429f81 100644
--- a/docs_build/project_common.py
+++ b/docs_build/project_common.py
@@ -4,6 +4,11 @@
 # pip install exhale
 # pip install sphinxcontrib-pyexec
 
+# workaround
+# pip uninstall Jinja2 -y
+# pip uninstall MarkupSafe -y
+# pip install Jinja2==3.0
+
 import exhale
 import os
 import re
diff --git a/submodules/UtilsLite b/submodules/UtilsLite
index 3c0cf9e1..399fc051 160000
--- a/submodules/UtilsLite
+++ b/submodules/UtilsLite
@@ -1 +1 @@
-Subproject commit 3c0cf9e1239a4f39d6e1d19fa0d6206922016b7b
+Subproject commit 399fc05184eaa70cdf858e8f6d36e8028d7379dd
diff --git a/submodules/quarticRootsFlocke b/submodules/quarticRootsFlocke
index f6ca0dc0..bb75d434 160000
--- a/submodules/quarticRootsFlocke
+++ b/submodules/quarticRootsFlocke
@@ -1 +1 @@
-Subproject commit f6ca0dc0de9826ff6575416c307449e7cb23125a
+Subproject commit bb75d43494be5c8b988f495cd38e037001fbff0e