Add Wireguard logo (SVG) (#455)

* Added wireguard.svg.

* Added WireGuard icon to README.md.
Added reference image to images/reference/wireguard.svg and updated images/reference/index.md correspondingly.

* Corrected the Aria label for wireguard.svg. This added 5 bytes to the size; updated README.md correspondingly.

Co-authored-by: Terence Eden <edent@users.noreply.github.com>

images/reference/index.md

@@ -243,4 +243,5 @@ Where possible this links to the organisation's brand guidelines page.
 | <img src="/images/svg/microformats.svg" width="256" /> | <img src="/images/reference/microformats.png" width="256" /> |  |
 | <img src="/images/svg/keepassdx.svg" width="256" /> | <img src="/images/reference/keepassdx.png" width="256" /> | https://github.com/Kunzisoft/KeePassDX |
 | <img src="/images/svg/humblebundle.svg" width="256" /> | <img src="/images/reference/humblebundle.png" width="256" /> | https://cdn.worldvectorlogo.com/logos/humblebundle.svg |
-| <img src="/images/svg/freecodecamp.svg" width="256" /> | <img src="/images/reference/freecodecamp.svg" width="256" /> | https://design-style-guide.freecodecamp.org |
+| <img src="/images/svg/wireguard.svg" width="256" /> | <img src="/images/reference/wireguard.svg" width="256" /> | https://www.wireguard.com/img/emblem-circle.svg |
+| <img src="/images/svg/freecodecamp.svg" width="256" /> | <img src="/images/reference/freecodecamp.svg" width="256" /> | https://design-style-guide.freecodecamp.org |

images/reference/wireguard.svg

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="400" height="400" version="1.1" viewBox="0 0 400 400" xml:space="preserve" xmlns="http://www.w3.org/2000/svg"><defs><clipPath id="a"><path d="m0 300h300v-300h-300z"/></clipPath></defs><g transform="matrix(1.3333 0 0 -1.3333 0 400)"><g clip-path="url(#a)"><g transform="translate(196.28 258.75)"><path d="m0 0c5.61-0.206 11.23-0.121 16.844-0.254 1.68-0.04 3.352-0.461 4.167-0.58-1.343-1.765-2.547-3.86-4.236-5.434-2.007-1.87-4.274-3.698-7.166-0.856-0.695 0.684-2.338 0.527-3.549 0.543-5.582 0.073-11.172 0.252-16.746 0.041-4.829-0.182-9.679-0.621-14.425-1.473-0.894-0.16-2.23-3.131-1.819-4.227 0.969-2.585 2.383-5.436 4.478-7.089 7.74-6.11 15.972-11.596 23.747-17.664 7.556-5.897 14.589-12.358 18.875-21.253 5.584-11.59 5.747-23.743 3.339-35.95-4.02-20.378-14.333-37.261-31.032-49.524-6.729-4.941-15.061-7.745-22.767-11.295-6.778-3.122-13.755-5.811-20.549-8.901-12.249-5.569-19.133-18.865-17.108-32.688 1.859-12.685 12.987-23.271 25.735-25.456 15.292-2.622 31.072 7.316 34.813 22.859 4.206 17.478-5.29 33.083-23.066 37.814-0.782 0.208-1.568 0.405-3.201 0.827 4.755 2.124 8.862 3.638 12.653 5.724 6.614 3.64 13.123 7.494 19.481 11.562 1.874 1.199 2.887 1.199 4.485-0.183 12.225-10.569 19.518-23.718 21.563-39.838 3.384-26.685-9.247-51.198-33.072-63.763-36.86-19.439-81.965 2.687-90.107 43.552-6.973 35.004 17.73 66.755 47.462 72.885 12.787 2.636 24.48 7.959 33.57 17.807 5.865 6.354 8.709 11.806 9.677 14.266 2.308 5.861 2.72 11.114 2.722 14.469 0 1.251-0.323 6.375-2.966 12.399-3.104 7.075-14.995 18.33-17.939 20.703l-28 21.922c-0.988 0.812-2.1 0.753-4.508 0.59-2.861-0.194-10.175-0.599-13.331 0.228 2.553 1.932 9.513 4.745 12.502 7.007-9.074 6.13-19.43 3.916-28.942 5.746 2.2 4.096 13.082 10.39 19.27 11.091-0.521 3.44-0.782 6.948-1.687 10.281-0.378 1.392-1.931 2.741-3.287 3.535-3.286 1.927-6.769 3.517-10.548 5.433 3.529 2.359 7.444 3.316 11.331 3.505 3.764 0.184 7.663-0.263 11.348-1.105 6.742-1.541 12.125-0.535 17.488 4.048-4.222 1.7-8.443 3.253-12.537 5.091-4.03 1.808-7.93 3.903-11.779 6.158 10.622-1.476 20.896-5.459 31.757-4.003 0.092 0.493 0.184 0.987 0.277 1.48-8.12 1.89-16.239 3.78-25.229 5.873 15.04 1.377 29.042 1.604 42.301-4.854 3.731-1.817 7.635-3.322 11.211-5.397 1.744-1.013 2.919-3.008 4.35-4.56 1.136-1.232 2.049-2.884 3.446-3.626 5.3-2.819 11.134-2.929 17.077-2.788 0.045 0.677 0.086 1.311 0.131 1.993 5.982-1.869 12.715-8.768 12.704-13.806-9.691 0-19.375 0.037-29.057-0.053-1.034-0.01-2.062-0.766-3.093-1.176 0.98-0.571 1.943-1.599 2.942-1.636m-120.78-186.98c-5.677-1.441-11.178-3.574-16.982-5.477 2.839 19.151 25.266 36.788 44.231 34.776-5.874-7.944-8.588-16.93-9.242-25.893-6.302-1.161-12.241-1.942-18.007-3.406m26.449 133.53c30.017 18.364 68.365 7.14 82.735-20.476 2.723-5.234 3.069-13.291 1.345-18.782-5.955-18.956-20.015-29.586-39.313-34.103 5.689 4.871 10.218 10.394 11.659 18.025 1.452 7.687-0.083 14.639-4.542 20.957-6.773 9.596-19.868 13.544-30.811 9.389-11.881-4.511-18.389-15.354-17.216-28.683 1.09-12.381 10.484-20.405 28.061-23.453-2.627-1.391-4.65-2.415-6.63-3.518-8.1-4.512-15.026-10.418-20.544-17.868-1.783-2.408-3.01-2.602-5.727-0.941-35.338 21.61-37.609 75.844 0.983 99.453m197.8-50.862s6.939 145.56-153.04 145.56c-141.48 0-145.9-139.63-145.9-139.63s-20.811-160.37 149.16-160.37c163.02 0 149.78 154.44 149.78 154.44" fill="#871719"/></g><g transform="translate(183.79 273.09)"><path d="m0 0c-0.946-0.724-0.831-1.525-0.189-2.369 0.79-1.04 1.766-1.48 3.072-0.822 0.933 0.471 1.848 0.972 2.975 1.567-0.908 0.775-1.636 1.415-2.386 2.032-1.318 1.086-2.411 0.404-3.472-0.408" fill="#871719"/></g></g></g></svg>

images/svg/wireguard.svg

@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg"
+aria-label="WireGuard" role="img"
+viewBox="0 0 512 512"><rect
+width="512" height="512"
+rx="15%"
+fill="#88171a"/><path d="m238 53l35 8 0 2c-15 2-30-4-45-5 11 7 23 11 35 15-19 16-35-5-56 9 20 10 19 8 21 27-9 1-24 10-27 16 13 3 28 0 41 8-4 3-14 7-18 10 9 2 20-2 25 1 19 16 54 38 64 60 17 37-22 77-60 83-53 11-83 66-64 117 19 50 78 72 125 46 66-40 56-108 16-145-2-2-4-2-6 0-14 9-29 17-45 24 36 8 41 35 37 54-13 48-78 37-85-4-3-19 7-38 24-46 59-26 87-30 104-97 6-38-3-58-31-80-11-11-33-18-40-35-1-2 1-6 3-6 10-2 49-3 49-1 7 7 13-4 16-9-10-2-21-1-29-1-1 0-3-2-4-3 1 -1 3-2 4-2h41c0-7-9-17-18-19v3c-8 1-16-1-24-4-4-3-7-9-11-11-16-9-33-16-54-16-10 0-17 1-23 1zm74 30l3 3-4 2c-2 1-3 0-4-1-2-3 4-5 5-4zm-120 96c-54 33-51 109-3 139 4 2 6 2 8-1 12-15 23-22 36-30-25-4-38-16-37-33-4-60 83-54 74 2-2 10-8 19-16 25 27-6 47-21 55-48 2-8 2-19-2-26-30-44-75-53-115-28zm-62 195c16-7 33-10 49-13 1-13 5-26 13-36-30 0-55 20-62 49z" fill="#fff"/></svg>