Add adb commands

pages/common/adb.md

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+# Android Debug Bridge
+
+> Communicate with an Android emulator instance or connected Android devices
+
+- Check whether the adb server process is running and start it
+
+`adb start-server`
+
+- Terminate the adb server process
+
+`adb kill-server`
+
+- Start a remote shell in the target emulator/device instance
+
+`adb shell`
+
+- Push an Android application to an emulator/device
+
+`adb install -r {{apk.path}}`