update build system and documentation

1 files changed, 5 insertions, 1 deletions

diff --git a/TODO.md b/TODO.md
index e17b9eb..a57e378 100644
--- a/TODO.md
+++ b/TODO.md
@@ -4,7 +4,11 @@
 
 * [ ] find way to render data into image files
     * [x] read/write grids to/from file
-    * [ ] create image with ImageMagick core/wand
+    * [ ] create image with libgd
+    * [ ] create animation with libgd
+* [ ] code refactor
+    * [ ] change functions so that complex_t is passed instead of complex from <complex.h>
+    * [ ] store the size of lower_left and upper_right before the values of lower_left and upper_right in the .grid format
 * [x] write serial
     * [x] mandelbrot
     * [x] multibrot