updated default_aliases

default_aliases

@@ -94,6 +94,7 @@ alias graph="git log --all --decorate --oneline --graph"
 alias gs="git status"
 alias gl="git log"
 alias gd="git diff"
+alias gf="git fetch"
 alias ga="git add ."
 alias gb="git branch"
 alias gch="git checkout"