DOCS: modified writing docs section

Change-Id: Ic3ec16dba1a6374785f25f622b2cdc9b6415a13b
Signed-off-by: javierfernandezvalles <JaviervallesF@gmail.com>
diff --git a/docs/gettingstarted/writingdocs/buildingrst.rst b/docs/gettingstarted/writingdocs/buildingrst.rst
index 00f051c..10d073b 100644
--- a/docs/gettingstarted/writingdocs/buildingrst.rst
+++ b/docs/gettingstarted/writingdocs/buildingrst.rst
@@ -37,7 +37,7 @@
 Install the virtual environment
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  
-In your vpp-docs directory, run: 
+In the vpp root directory on your system, run: 
 
 .. code-block:: console