Created installCia (markdown)

installCia.md

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+The Function `installCia` contains 2 Parameters.
+
+`file` -> The path to the cia file.
+
+`message` -> Message while installing.
+
+You can find an example here:
+```
+        {
+            "type": "installCia",
+            "file": "sdmc:/Universal-Updater.cia",
+            "message": "Installing the Cia..."
+        }