update "overwrite pull":

- rename to "sync with remote" for clarity
- add 'git clean' to ensure working tree is clean

README.md

@@ -14,7 +14,7 @@ P.S: All these commands are tested on `git version 2.7.4 (Apple Git-66)`.
 * [Everyday Git in twenty commands or so](#everyday-git-in-twenty-commands-or-so)
 * [Show helpful guides that come with Git](#show-helpful-guides-that-come-with-git)
 * [Search change by content](#search-change-by-content)
-* [Overwrite pull](#overwrite-pull)
+* [Sync with remote](#sync-with-remote)
 * [List of all files till a commit](#list-of-all-files-till-a-commit)
 * [Git reset first commit](#git-reset-first-commit)
 * [List all the conflicted files](#list-all-the-conflicted-files)
@@ -185,9 +185,9 @@ git help -g
 git log -S'<a term in the source>'
 ```
 
-## Overwrite pull
+## Sync with remote
 ```sh
-git fetch origin && git reset --hard origin/master
+git fetch origin && git reset --hard origin/master && git clean -f -d
 ```
 
 ## List of all files till a commit

tips.json

@@ -8,8 +8,8 @@
     "title": "Search change by content",
     "tip": "git log -S'<a term in the source>'"
 }, {
-    "title": "Overwrite pull",
-    "tip": "git fetch origin && git reset --hard origin/master"
+    "title": "Sync with remote",
+    "tip": "git fetch origin && git reset --hard origin/master && git clean -f -d"
 }, {
     "title": "List of all files till a commit",
     "tip": "git ls-tree --name-only -r <commit-ish>"