Added six-colored-GO example

doc/md/README_plot_go.md

@@ -10,6 +10,9 @@
     * [GO terms listed in a file](#plot-two-go-terms-listed-in-a-file-using-different-colors-and-their-ancestors)
     * [Using 'is_a' relationship only (default)](#plot-two-go-terms-using-different-colors-and-their-ancestors)
     * [Using all relationships](#plot-two-go-terms-using-different-colors-and-their-ancestors-with-relationships)
+  * Plot **six** GO terms in a file (a different **color** for each) and their ancestors:
+    * [Using 'is_a' relationship only (default)]()
+    * [Using all relationships]()
 
 ## Plot one GO term and its ancestors
 Plot one term and all ancestors using the 'is_a' attribute.    
@@ -49,8 +52,8 @@ scripts/go_plot.py GO:0003304 GO:0003146 --r -o heart_jogging_r1.png
 
 
 ## Plot two GO terms (listed in a file) using different colors and their ancestors
-Plot two terms and all ancestors using the 'is_a' attribute.        
-The heart jogging GO term, GO:0003146, is colored in [ice](://klaash.github.io/xkcdcolorpicker/#ice).    
+Plot two terms and all ancestors using the 'is_a' attribute.
+The heart jogging GO term, GO:0003146, is colored in [ice](://klaash.github.io/xkcdcolorpicker/#ice).
 
 The file contains the GO terms and user-defined colors:
 ```
@@ -82,4 +85,29 @@ scripts/go_plot.py GO:0003304 GO:0003146#d6fffa --r -o heart_jogging_ice_r1.png
 ![heart_jogging_r1](../images/plot_go/heart_jogging_ice_r1.png)
 
 
+## Plot six GO terms (listed in a file) using different colors and their ancestors
+Plot two terms and all ancestors using the 'is_a' attribute.        
+The heart jogging GO term, GO:0003146, is colored in [ice](://klaash.github.io/xkcdcolorpicker/#ice).    
+
+The file, go_heartjogging6.txt, contains the GO terms and user-defined colors:
+```
+#fad2fa GO:0072359  # BP 643 D04 circulatory system development
+#d2fafa GO:0003007  # BP 197 D04 heart morphogenesis
+#fafad2 GO:0035050  # BP  26 D05 embryonic heart tube development
+#ffe5b4 GO:0003304  # BP   0 D06 myocardial epithelial involution involved in heart jogging
+#e6fad2 GO:0061371  # BP  11 D06 determination of heart left/right asymmetry
+#d2d2fa GO:0003146  # BP   6 D07 heart jogging
+```
+### Six different-colored GO terms without relationships
+```
+scripts/go_plot.py --go_file=tests/data/go_plot/go_heartjogging6.txt -o heartjogging6_r0.png
+```
+![heart_jogging_r0](../images/plot_go/heartjogging6_r0.png)
+
+### Six different-colored GO terms with relationships
+```
+scripts/go_plot.py --go_file=tests/data/go_plot/go_heartjogging6.txt -r -o heartjogging6_r1.png
+```
+![heart_jogging_r0](../images/plot_go/heartjogging6_r1.png)
+
 Copyright (C) 2010-2018, DV Klopfenstein, Haibao Tang et al. All rights reserved.

tests/data/go_plot/go_heartjogging6.txt

@@ -0,0 +1,13 @@
+"lightbright" Color Palette
+http://www.color-hex.com/color-palette/51895
+
+and orange (#ffe5b4) from the "favorite pink based oranges" Color Palette
+
+
+#fad2fa GO:0072359  # BP 643 D04 circulatory system development
+#d2fafa GO:0003007  # BP 197 D04 heart morphogenesis
+#fafad2 GO:0035050  # BP  26 D05 embryonic heart tube development
+#ffe5b4 GO:0003304  # BP   0 D06 myocardial epithelial involution involved in heart jogging
+#e6fad2 GO:0061371  # BP  11 D06 determination of heart left/right asymmetry
+#d2d2fa GO:0003146  # BP   6 D07 heart jogging
+