fix conflict of fc with fcs

Examples.md

@@ -181,9 +181,9 @@ fshow() {
 ```
 
 ```sh
-# fc - get git commit sha
-# example usage: git rebase -i `fc`
-fc() {
+# fcs - get git commit sha
+# example usage: git rebase -i `fcs`
+fcs() {
   local commits commit
   commits=$(git log --color=always --pretty=oneline --abbrev-commit --reverse) &&
   commit=$(echo "$commits" | fzf --tac +s +m -e --ansi --reverse) &&