1. фавикон изучаем статью, потом меняем или оставляем.

favicons/favicon.svg

+<svg width="100" height="95" viewBox="0 0 100 95" fill="none" xmlns="http://www.w3.org/2000/svg">
+<g clip-path="url(#clip0_173_2)">
+<path d="M37.9679 94.7567L87.5553 78.9233C89.9283 78.1926 91.5649 76.0003 91.5649 73.4832L91.7285 21.8421C91.7285 19.325 90.1738 17.1327 87.719 16.402L38.2952 0.325047C35.9222 -0.486919 33.3037 0.406244 31.8308 2.35496L1.14556 44.0088C-0.32733 46.0387 -0.32733 48.7182 1.14556 50.7481L31.5854 92.6456C32.9764 94.6755 35.5949 95.4874 37.9679 94.7567Z" fill="#00B8F0"/>
+<path d="M35.5949 1.70506L48.9328 43.9273C49.1782 44.7393 50.1602 45.1452 50.8966 44.6581L89.3555 18.6752C90.2556 18.1068 89.0282 16.8888 88.0463 16.564L37.3133 0.0811329C36.2495 -0.243653 35.2676 0.649509 35.5949 1.70506Z" fill="white"/>
+<path d="M1.47284 48.5555L48.9327 44.7393C49.5874 44.6581 50.1602 45.3077 49.9147 46.0385L33.9583 93.0513C33.7128 93.8632 32.7309 94.0256 32.24 93.3761L0.736398 50.0983C0.327261 49.4487 0.736398 48.5555 1.47284 48.5555Z" fill="#008CFF"/>
+</g>
+</svg>

index.html

@@ -4,7 +4,6 @@
     <meta charset="UTF-8" />
     <meta http-equiv="X-UA-Compatible" content="IE=edge" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <link type="image/x-icon" href="favicons/favicon.ico" rel="shortcut icon" />
     <link type="Image/x-icon" href="favicons/favicon.ico" rel="icon" />
     <link rel="stylesheet" href="bootstrap.min.css" />
     <link rel="stylesheet" href="style.css" />

style.css

@@ -544,7 +544,7 @@ hr.delimeter {
   > .descr-top
   > .descr-top__title-bottom
   > span.title__colored {
-  font-family: "Roboto";
+  font-family: "RobotoRegular";
   font-style: normal;
   font-weight: 400;
   font-size: 35px;
@@ -833,7 +833,7 @@ article.notation-one {
   font-family: "RobotoRegular";
   font-style: normal;
   font-weight: 500;
-  font-size: 14px;
+  font-size: 16px;
   line-height: 16px;
 
   max-width: 560px;