Added git diff --staged to be synonym for git diff --cached

README.md

@@ -100,7 +100,6 @@ P.S: All these commands are tested on `git version 2.7.4 (Apple Git-66)`.
 * [View the GPG signatures in the commit log](#view-the-gpg-signatures-in-the-commit-log)
 * [Remove entry in the global config.](#remove-entry-in-the-global-config)
 * [Checkout a new branch without any history](#checkout-a-new-branch-without-any-history)
-* [File diff between staging and the last file version.](#file-diff-between-staging-and-the-last-file-version)
 * [Extract file from another branch.](#extract-file-from-another-branch)
 * [List only the root and merge commits.](#list-only-the-root-and-merge-commits)
 * [Merge previous two commits into one.](#merge-previous-two-commits-into-one)
@@ -159,7 +158,7 @@ git diff
 
 ## Changes staged for commit
 ```sh
-git diff --cached
+git diff --cached or git diff --staged
 ```
 
 ## Show both staged and unstaged changes
@@ -689,11 +688,6 @@ git config --global --unset <entry-name>
 git checkout --orphan <branch_name>
 ```
 
-## File diff between staging and the last file version.
-```sh
-git diff --staged
-```
-
 ## Extract file from another branch.
 ```sh
 git show <branch_name>:<file_name>

tips.json

@@ -24,7 +24,7 @@
     "tip": "git diff"
 }, {
     "title": "Changes staged for commit",
-    "tip": "git diff --cached"
+    "tip": "git diff --cached or git diff --staged"
 }, {
     "title": "Show both staged and unstaged changes",
     "tip": "git diff HEAD"
@@ -300,9 +300,6 @@
 }, {
     "title": "Checkout a new branch without any history",
     "tip": "git checkout --orphan <branch_name>"
-}, {
-    "title": "File diff between staging and the last file version.",
-    "tip": "git diff --staged"
 }, {
     "title": "Extract file from another branch.",
     "tip": "git show <branch_name>:<file_name>"