imageresampler library reference

docs/stb_resample_ideas.txt

@@ -1,3 +1,13 @@
+1.
+
+Consider just porting this C++ public domain
+library back to C:
+    https://code.google.com/p/imageresampler/source/browse/#svn%2Ftrunk
+(recommended by @castano)
+
+
+2.
+
 Consider three cases just to suggest the spectrum
 of possiblities: