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diff --git a/README.md b/README.md
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+++ b/README.md
@@ -1,14 +1,18 @@
 # My fledgling bash library
 
 ## number functions
+
 **pb_number**
+
     pb_isuint
     pb_isint
     pb_isunumber
     pb_isnumber
 
 ## colour functions
+
 **pb_colour**
+
     pb_fg 0-254  set foreground colour
     pb_bg 0-254  set background colour
     pb_nc        remove coulours