diff --git a/ClustalParser.cabal b/ClustalParser.cabal
--- a/ClustalParser.cabal
+++ b/ClustalParser.cabal
@@ -5,7 +5,7 @@
 -- PVP summary:      +-+------- breaking API changes
 --                   | | +----- non-breaking API additions
 --                   | | | +--- code changes with no API change
-version:             1.0.2
+version:             1.0.3
 synopsis:            Libary for parsing Clustal tools output
 description:         Currently contains parsers and datatypes for: clustalw2, clustalo
                      .
@@ -24,14 +24,17 @@
 build-type:          Simple
 cabal-version:       >=1.8
 
+extra-source-files:
+  README.md changelog
+
 source-repository head
   type:     git
   location: https://github.com/eggzilla/ClustalParser
 
 source-repository this
   type:     git
-  location: https://github.com/eggzilla/ClustalParser/tree/1.0.2
-  tag:      1.0.2
+  location: https://github.com/eggzilla/ClustalParser/tree/1.0.3
+  tag:      1.0.3
 
 library
   -- Modules exported by the library.
diff --git a/README.md b/README.md
new file mode 100644
--- /dev/null
+++ b/README.md
@@ -0,0 +1,27 @@
+ClustalParser   [![Build Status](https://travis-ci.org/eggzilla/ClustalParser.svg)](https://travis-ci.org/eggzilla/ClustalParser)
+=============
+
+Currently contains parsers and datatypes for: clustalw2, clustalo
+
+Clustal tools are multipe sequence aligenment tools for biological sequences 
+like DNA, RNA and Protein.
+For more information on clustal Tools refer to <http://www.clustal.org/>.
+
+
+4 types of output are parsed
+
+ - Alignment file (.aln): 
+  * Parsing with readClustalAlignment from filepath (Bio.ClustalParser)
+  * Parsing with parseClustalAlignment from String (Bio.ClustalParser)
+  
+- Alignment file with secondary structure (.aln): 
+  * Parsing with readStructuralClustalAlignment from filepath (Bio.ClustalParser)
+  * Parsing with parsStructuralClustalAlignment from String (Bio.ClustalParser)
+
+ - Summary (printed to STDOUT):
+  * Parsing with readClustalSummary from filepath (Bio.ClustalParser)
+  * Parsing with parseClustalSummary from String (Bio.ClustalParser)
+
+ - Phylogenetic Tree (.dnd):
+  * Parsing with readGraphNewick from filepath (Bio.Phylogeny)
+  * Parsing with readGraphNewick from String (Bio.Phylogeny)
diff --git a/changelog b/changelog
new file mode 100644
--- /dev/null
+++ b/changelog
@@ -0,0 +1,9 @@
+-*-change-log-*-
+1.0.3 Florian Eggenhofer <florian.eggenhofer@univie.ac.at> 19. April 2015
+	* Added Y (pyrimidine) and R (purine) to sequence characters
+1.0.2 Florian Eggenhofer <florian.eggenhofer@univie.ac.at> 19. March 2015
+	* Linebreaks are now filtered from structural alignment sequence identifiers
+1.0.1 Florian Eggenhofer <florian.eggenhofer@univie.ac.at> 27. October 2014
+	* Fixed compiler warnings and updated documentation to mention structural clustal format
+	* Added -Wall and -O2 compiler options
+	* Added support for clustal alignments with secondary structure annotation
diff --git a/src/Bio/ClustalParser.hs b/src/Bio/ClustalParser.hs
--- a/src/Bio/ClustalParser.hs
+++ b/src/Bio/ClustalParser.hs
@@ -152,7 +152,7 @@
 genParserClustalEntrySlice = do
   sliceIdentifier <- many1 (noneOf " ")
   spacer <- many1 (char ' ')
-  sliceSequence <- many1 (noneOf "\n")
+  sliceSequence <- many1 (oneOf "NYRUAGCT-")
   newline
   return $ ClustalAlignmentEntrySlice sliceIdentifier sliceSequence (length spacer)
 
@@ -231,7 +231,7 @@
 genParserStructuralClustalEntrySlice = do
   sliceIdentifier <- many1 (noneOf " ")
   many1 (char ' ')
-  sliceSequence <- many1 (oneOf "NUAGCT-")
+  sliceSequence <- many1 (oneOf "NYRUAGCT-")
   newline
   return $ StructuralClustalAlignmentEntrySlice (filter (/='\n') sliceIdentifier) sliceSequence