Update git diff aliases

zshrc

@@ -187,8 +187,10 @@ alias pbin='~/repos/cpaste/cpaste --sourcecode --expire 1week --file '
 ## Git aliases − Try to prefix with 'gg' {{{
 ### Get status of the repo
 alias ggstatus='git status'
-### Show differences between changes and index
-alias ggdiff='git diff'
+### Show differences between changes and index and ensure to display colors even with a pipe
+alias ggdiff='git diff --color=always'
+### Show differences between changes and index WITHOUT any colors
+alias ggnocolordiff='git diff --color=never'
 ### Show only words/characters differences
 alias ggwdiff='git diff --color-words=. --patience'
 ### Add changes to index