Added modified while newly added and type change detection to git prompt modified status.

lib/git.zsh

@@ -26,6 +26,10 @@ git_prompt_status() {
   fi
   if $(echo "$INDEX" | grep '^ M ' &> /dev/null); then
     STATUS="$ZSH_THEME_GIT_PROMPT_MODIFIED$STATUS"
+  elif $(echo "$INDEX" | grep '^AM ' &> /dev/null); then
+    STATUS="$ZSH_THEME_GIT_PROMPT_MODIFIED$STATUS"
+  elif $(echo "$INDEX" | grep '^ T ' &> /dev/null); then
+    STATUS="$ZSH_THEME_GIT_PROMPT_MODIFIED$STATUS"
   fi
   if $(echo "$INDEX" | grep '^R  ' &> /dev/null); then
     STATUS="$ZSH_THEME_GIT_PROMPT_RENAMED$STATUS"