Move PWM example

Author: sam210723

README.md

@@ -18,7 +18,7 @@ A collection of FPGA projects on various FPGA development boards.
 |                                           | [PicoSoC Minimal](icesugar/picosoc-minimal)      | PicoSoC with helpers    | Complete |
 |                                           | [I2C](icesugar/i2c)                              | I2C core                | WIP      |
 | [iCESugar Nano](https://git.io/JqHiX)     | [Blink](icesugar-nano/blink)                     | Basic blink example     | Complete |
-|                                           | [LED PWM](icesugar-nano/led_pwm)                 | Basic LED PWM example   | Complete |
+|                                           | [PWM](icesugar-nano/pwm)                         | Basic LED PWM example   | Complete |
 |                                           | [S/PDIF](icesugar-nano/spdif)                    | nMigen S/PDIF TX        | WIP      |
 | [Colorlight 5A-75B](https://git.io/Jc9iW) | [Blink](colorlight-5a-75b/blink)                 | Basic blink example     | Complete |
 |                                           | [LiteX Base](colorlight-5a-75b/litex_base)       | Basic LiteX SoC example | Complete |