Fixed warnings and errors in Doc

Fixed errors in read the docs page
Change-Id: Id5ccdd2049d71d5099de5537b0799bb5dfc7124c
Issue-ID: CCSDK-1453
Signed-off-by: Ezhilarasi <ezhrajam@in.ibm.com>
diff --git a/docs/datadictionary/index.rst b/docs/datadictionary/index.rst
index 3ac8587..4039cca 100644
--- a/docs/datadictionary/index.rst
+++ b/docs/datadictionary/index.rst
@@ -40,7 +40,7 @@
 .. toctree::
    :maxdepth: 1
    
-	resourcedefinitioncodesnip 
+   resourcedefinitioncodesnip 
 
 
 Resource source: