cpu-gpu-monitor@alexsmolya: add CPU & GPU Monitor desklet

Author: alexsmolya

cpu-gpu-monitor@alexsmolya/LICENSE

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+# CPU & GPU Monitor
+
+CPU & GPU Monitor is a Cinnamon desklet with compact history graphs for:
+
+- aggregate CPU usage;
+- RAM usage;
+- CPU temperature;
+- NVIDIA GPU utilization;
+- VRAM usage;
+- GPU temperature.
+
+## Hardware scope
+
+The first public version targets Linux and Cinnamon. CPU temperature uses the
+standard Linux hwmon interfaces exposed by AMD `k10temp` or `zenpower`, with a
+constrained CPU/package thermal-zone fallback. NVIDIA metrics use the first row
+returned by the system-provided `nvidia-smi` command.
+
+Intel CPU temperature support is not claimed. AMD GPUs and Intel GPUs are not
+supported, and multi-GPU selection is not implemented. This is not a claim of
+support for every AMD CPU or NVIDIA GPU.
+
+If `nvidia-smi` is absent or unavailable, the GPU section reports a degraded
+state while CPU and RAM monitoring continue. A working `nvidia-smi` is normally
+provided by the NVIDIA driver/package managed by the Linux distribution or
+system; the desklet does not download external software.
+
+## Settings
+
+The settings panel provides the update interval, UI scale, legend visibility,
+and separate colors for CPU/GPU utilization, memory, and temperature lines.
+
+## Installation
+
+The standard Cinnamon Spices installation path is **System Settings →
+Desklets → Download**, followed by enabling the desklet from **Manage**. No
+custom installer or external download is required.
+
+## Verified environment
+
+The initial release was live-tested on Cinnamon 6.6.9/X11 with an AMD Ryzen 5
+5600H, its `k10temp` Tctl sensor, and an NVIDIA RTX 3050 Laptop GPU using
+`nvidia-smi`. Other hardware and Cinnamon versions remain unverified.
+
+## License
+
+CPU & GPU Monitor is licensed under GPL-3.0-or-later.