v1.7.1 to use Ethernet_Generic library

### Releases v1.7.1

1. Use new [Ethernet_Generic library](https://github.com/khoih-prog/Ethernet_Generic) as default for W5x00.
2. Support SPI2 for ESP32
3. Add support to SPI1 for RP2040 using [arduino-pico core](https://github.com/earlephilhower/arduino-pico)
4. Use new function `waitForLink()` for Teensy 4.1 QNEthernet library v0.14.0+
5. Rewrite all the examples to support those new features
6. Update `Packages' Patches`

Author: khoih-prog

changelog.md

@@ -34,7 +34,7 @@
 
 ## Changelog
 
-### Releases v1.7.1
+### Release v1.7.1
 
 1. Use new [Ethernet_Generic library](https://github.com/khoih-prog/Ethernet_Generic) as default for W5x00.
 2. Support SPI2 for ESP32
@@ -43,7 +43,7 @@
 5. Rewrite all the examples to support those new features
 6. Update `Packages' Patches`
 
-### Releases v1.7.0
+### Release v1.7.0
 
 1. Convert to `h-only` style
 2. Add `multiFileProject` examples to demo for multiple-file projects