Move pages under tldr, lint run.sh, update docs

tldr/git-replace

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# git replace
+
+> Create, list, and delete refs to replace objects.
+> More information: <https://git-scm.com/docs/git-replace>.
+
+- Replace any commit with a different one, leaving other commits unchanged:
+
+`git replace {{object}} {{replacement}}`
+
+- Delete existing replace refs for the given objects:
+
+`git replace --delete {{object}}`
+
+- Edit an object’s content interactively:
+
+`git replace --edit {{object}}`