Update cheatsheets

tldr/apkeep

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# apkeep
+
+> Download APK files from various sources.
+> More information: <https://github.com/EFForg/apkeep>.
+
+- Download an APK file to the specified directory:
+
+`apkeep --app {{com.example.application}} {{path/to/directory}}`
+
+- List all available versions for download:
+
+`apkeep --app {{com.example.application}} --list-versions {{path/to/directory}}`
+
+- Specify a store to download from:
+
+`apkeep --app {{com.example.application}} --download-source {{apk-pure|google-play|f-droid|huawei-app-gallery}} {{path/to/directory}}`