diff --git a/dynamic-pipeline.cabal b/dynamic-pipeline.cabal
--- a/dynamic-pipeline.cabal
+++ b/dynamic-pipeline.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           dynamic-pipeline
-version:        0.3.1.0
+version:        0.3.1.1
 synopsis:       Library Type Safe implementation of Dynamic Pipeline Paradigm (DPP).
 description:    @dynamic-pipeline@ is a __/Type Safe/__ Dynamic and Parallel Streaming Library, which is an implementation of __Dynamic Pipeline Paradigm (DPP)__ 
                 proposed in this paper [DPP](https://biblioteca.sistedes.es/articulo/the-dynamic-pipeline-paradigm/).
diff --git a/src/DynamicPipeline.hs b/src/DynamicPipeline.hs
--- a/src/DynamicPipeline.hs
+++ b/src/DynamicPipeline.hs
@@ -132,11 +132,11 @@
 import DynamicPipeline.Stage
 
 -- $grammar
--- The following is the Regular Grammar allowed to build a /DPP/ Flow definition:
+-- The following is the Context Free Grammar allowed to build a /DPP/ Flow definition:
 -- 
 -- @
 -- __DP__       -> 'Source' __CHANS__ ':=>' 'Generator' __CHANS__ ':=>' 'Sink'
--- __DP__       -> 'Source' __CHANS ':=>' 'Generator' __CHANS__ ':=>' __FEEDBACK__ ':=>' 'Sink'
+-- __DP__       -> 'Source' __CHANS__ ':=>' 'Generator' __CHANS__ ':=>' __FEEDBACK__ ':=>' 'Sink'
 -- __CHANS__    -> 'Channel' __CH__
 -- __FEEDBACK__ -> 'FeedbackChannel' __CH__
 -- __CH__       -> 'Type' ':<+>' __CH__ | 'Eof'