README: improve wording an provide a more robust example of use

diff --git a/README b/README
index 9edbbaf..edde33c 100644 (file)
--- a/README
+++ b/README
@@ -1,27 +1,30 @@
 bash_prompt is a collection of custom bash prompts to be loaded using the
 provided `set_prompt` function.
 
-Example of use, with bash_prompt under ~/.bash/:
+Example of use, assuming that bash_prompt is under ~/.bash/:
 
   # load git prompt support
   [ -f /usr/lib/git-core/git-sh-prompt ] && . /usr/lib/git-core/git-sh-prompt
 
   # load function to set custom shell prompts
-  [ -f ~/.bash/bash_prompt/set_prompt ] && . ~/.bash/bash_prompt/set_prompt
-
-  # set a different prompt for the root user
-  if [ $UID -eq 0 ];
+  if [ -f ~/.bash/bash_prompt/set_prompt ];
   then
-    set_prompt fire
-  else
-    set_prompt iceg
+    . ~/.bash/bash_prompt/set_prompt
+
+    # set a different prompt for the root user
+    if [ $UID -eq 0 ];
+    then
+      set_prompt fire
+    else
+      set_prompt iceg
+    fi 
   fi
 
 The prompts can contain backslash-escaped special characters as specified in
 the bash(1) man page, or any ANSI escape sequences as described in the
 console_codes(4) man page.
 
-The `set_prompt` function provides symbolic constant for the most used escape
+The `set_prompt` function defines symbolic constants for the most used escape
 sequences, see the source code for the details.
 
 Inspired by bashish: http://bashish.sourceforge.net/