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

tldr/topgrade

@@ -0,0 +1,33 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# topgrade
+
+> Update all applications on the system.
+> More information: <https://github.com/r-darwish/topgrade>.
+
+- Run updates:
+
+`topgrade`
+
+- Say yes to all updates:
+
+`topgrade -y`
+
+- Cleanup temporary/old files:
+
+`topgrade -c`
+
+- Disable a certain update operation:
+
+`topgrade --disable {{operation}}`
+
+- Only perform a certain update operation:
+
+`topgrade --only {{operation}}`
+
+- Edit the configuration file with default editor:
+
+`topgrade --edit-config`