Add brew to main page (#219)

Author: MarcinAman

website/src/components/BasicInstall.js

@@ -3,19 +3,23 @@ import Tabs from '@theme/Tabs';
 import TabItem from '@theme/TabItem';
 import BrowserOnly from '@docusaurus/BrowserOnly';
 
-const windowsPlatforms = ['Win32', 'Win64', 'Windows', 'WinCE']
-
-function defaultOS(){ return window ? (window.navigator.userAgent.indexOf("Win") != -1 ? "win" : "mac/linux") : "mac/linux" }
+const currentOs = () => {
+  const isCurrentOsEqual = (osShortName) => window.navigator.userAgent.indexOf(osShortName) !== -1
+  if(isCurrentOsEqual("Win")) return "win"
+  if(isCurrentOsEqual("Mac")) return "mac"
+  else return "linux"
+}
 
 export default function BasicInstall(props){
   return  <BrowserOnly>{() =>
       <div>
         <Tabs 
           groupId="operating-systems"
-          defaultValue={defaultOS()}
+          defaultValue={currentOs()}
           values={[
           {label: 'Windows', value: 'win'},
-          {label: 'macOS/Linux', value: 'mac/linux'},
+          {label: 'macOS', value: 'mac'},
+          {label: 'Linux', value: 'linux'},
         ]}>
 
           <TabItem value="win">
@@ -24,13 +28,20 @@ export default function BasicInstall(props){
             </a>
           </TabItem>
 
-          <TabItem value="mac/linux">
+          <TabItem value="linux" >
             <p>Run the following one-line command in your terminal</p>
             <code>
               curl -sSLf https://virtuslab.github.io/scala-cli-packages/scala-setup.sh | sh
             </code>
           </TabItem>
 
+          <TabItem value="mac">
+            <p>Run the following one-line command in your terminal</p>
+            <code>
+              brew install Virtuslab/scala-cli/scala-cli
+            </code>
+          </TabItem>
+
         </Tabs>
       </div>          
   }</BrowserOnly>

website/src/components/features.js

@@ -34,7 +34,7 @@ const featuresList = [
           Scala CLI shares some similarities with build tools,
           but doesn't aim at supporting multi-module projects,
           nor to be extended via a task system known from sbt, mill or bazel.
-        </p>,
+        </p>
         <p>
           Scala ecosystem has multiple amazing build tools, there is no need to create another one.
         </p>

website/src/pages/index.js

@@ -35,7 +35,7 @@ const Index = (props) => {
 
 			<SectionAbout title="Why Scala CLI?">
 				<p>
-					Scala CLI combines all the features you need to learn and use Scala in your (single-module) projects. Scala CLI is intuitive <span className="tooltip" data-tooltip="Hello World fdsafdas fdsfdsafd fdasfdasf">and interactive</span>
+					Scala CLI combines all the features you need to learn and use Scala in your (single-module) projects. Scala CLI is intuitive <span>and interactive</span>
 				</p>
 				<p>
 					If you are bored with reading documentation or landing pages you can just <a href="#install">install</a> and <a href="#enjoy">enjoy `scala-cli`</a>.