Remove txl usage

README.md

@@ -100,7 +100,7 @@ In addition to metrics, the library provides visualization of label graphs at th
 2. perl (**with LibXML**)
 3. python 3.x
 4. Graphviz (for 'dot')
-5. TXL (www.txl.ca)  (required for CROHMELib translation tools)
+5. BeautifulSoup4 (`pip install beautifulsoup4`)  (required for pretty printing output mathml)
 
 Make sure that *CROHMELibDir* and *LgEvalDir* are defined in
    your shell enviroment, e.g. by including the following in your .bashrc  initialization script for bash shell. The last line adds the

bin/lg2mml

@@ -25,5 +25,3 @@ fi
 BNAME=`basename $1 .lg`
 
 python $LgEvalDir/src/lg2txt.py $1 $LgEvalDir/translate/mathMLMap.csv > $BNAME.mml
-# txl -I $CROHMELibDir/src -I $CROHMELibDir/src/Grammars temp.mml $CROHMELibDir/src/pprintMathML.Txl > $BNAME.mml
-# rm temp.mml