Update README.md

README.md

@@ -47,7 +47,7 @@ http://sourceforge.net/projects/galpropskymapco  Conversion of older HEALPix for
 
 https://sourceforge.net/projects/gcrconvert      Convert GALPROP cosmic-ray files to a format viewable with fv
 
-https://sourceforge.net/projects/galpropsynchrotron General-purpose synchrotron routines with full Bessel functions and including polarization.
+https://gitlab.mpcdf.mpg.de/aws/synchrotron General-purpose synchrotron routines with full Bessel functions and including polarization.
 
 https://gitlab.mpcdf.mpg.de/aws/stellarics  StellarICS: Inverse Compton emission from the sun and stars, including general-purpose inverse Compton scattering routines.