Add alternatives "Git reset first commit" (#111)

Author: lav45

README.md

@@ -168,6 +168,12 @@ git ls-tree --name-only -r <commit-ish>
 git update-ref -d HEAD
 ```
 
+
+__Alternatives:__
+```sh
+git reset --hard HEAD
+```
+
 ## List all the conflicted files
 ```sh
 git diff --name-only --diff-filter=U

tips.json

@@ -12,7 +12,8 @@
     "tip": "git ls-tree --name-only -r <commit-ish>"
 }, {
     "title": "Git reset first commit",
-    "tip": "git update-ref -d HEAD"
+    "tip": "git update-ref -d HEAD",
+    "alternatives": ["git reset --hard HEAD"]
 }, {
     "title": "List all the conflicted files",
     "tip": "git diff --name-only --diff-filter=U"