Description: Fix broken links in README.txt
Author: Peter Blackman <peter@pblackman.plus.com>
Last-Update: 2020-06-06

Index: b/README.txt
===================================================================
--- a/README.txt
+++ b/README.txt
@@ -2,7 +2,7 @@
 see the file COPYING for the license covering this software.
 
 This is free software to render fractal flames as described on
-http://flam3.com.  Flam3-animate makes animations, and flam3-render
+https://flam3.com.  Flam3-animate makes animations, and flam3-render
 makes still images.  Flam3-genome creates and manipulates genomes
 (parameter sets).  A C library is also installed.
 
@@ -192,8 +192,8 @@
     env inter=test.flam3 frame=10 nframes=20 flam3-genome > inter10.flam3
     env frame=10 flam3-animate < inter10.flam3
 
-see http://flam3.com/flame.pdf for descriptions & formulas, and
-see http://electricsheep.wikispaces.com/Variations for updates.
+see https://flam3.com/flame_draves.pdf for descriptions & formulas, and
+see https://github.com/scottdraves/flam3/wiki/Catalog-of-Variations for updates.
 
 The complete list of variations:
 
@@ -296,7 +296,7 @@
   96. auger
   97. flux
   
-see http://flam3.com/flame.pdf for descriptions & formulas for each of
+see https://flam3.com/flame_draves.pdf for descriptions & formulas for each of
 these.  note that, by default, if a random flame is requested and neither
 'use_vars' or 'dont_use_vars' are specified, the following variations are
 not used: noise, blur, gaussian_blur, radial_blur, ngon, square, rays,