Iss-150: Fixed section about discarding local uncommitted changes (#160)

Iss-150: minor fix

README.md

@@ -295,25 +295,38 @@ $ git stash pop
 <a href="i-want-to-discard-my-local-uncommitted-changes"></a>
 ### I want to discard my local, uncommitted changes
 
-If you want to only reset to some commit between origin and your local, you can do this:
+This will unstage all files you might have staged with git add:
 
 ```sh
-# one commit
-(my-branch)$ git reset --hard HEAD^
-# two commits
-(my-branch)$ git reset --hard HEAD^^
-# four commits
-(my-branch)$ git reset --hard HEAD~4
-# or
-(master)$ git checkout -f
+$ git reset
 ```
 
-To reset only a specific file, you can use that filename as the argument:
+This will revert all local uncommitted changes (should be executed in repo root):
 
 ```sh
-$ git reset filename
+$ git checkout .
 ```
 
+You can also revert uncommitted changes to a particular file or directory:
+
+```sh
+$ git checkout [some_dir|file.txt]
+```
+
+Yet another way to revert all uncommitted changes (longer to type, but works from any subdirectory):
+
+```sh
+$ git reset --hard HEAD
+```
+
+This will remove all local untracked files, so only git tracked files remain:
+
+```sh
+$ git clean -fdx
+```
+
+WARNING: -x will also remove all ignored files!
+
 <a href="i-want-to-discard-specific-unstaged-changes"></a>
 ### I want to discard specific unstaged changes
 
@@ -1257,4 +1270,3 @@ Using git reset it is then possible to change master back to the commit it was b
 * [Fork](https://git-fork.com/) - a fast and friendly git client for Mac (beta)
 * [gmaster](https://gmaster.io/) - a git client for Windows that has 3-way merge, analyze refactors, semantic diff and merge (beta)
 * [gitk](https://git-scm.com/docs/gitk) - a git client for linux to allow simple view of repo state.
-