Remove www from URLs (#437)

* Remove www from URLs

* typo

* slash

README.md

@@ -7,7 +7,7 @@
 
 ## Try it now
 
-Go to https://www.excalidraw.com to start sketching
+Go to https://excalidraw.com to start sketching
 
 ## Testimonials
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "excalidraw",
-  "homepage": "https://www.excalidraw.com",
+  "homepage": "https://excalidraw.com",
   "version": "1.0.0",
   "description": "",
   "keywords": [],

public/CNAME

@@ -1 +1 @@
-www.excalidraw.com
+excalidraw.com

public/index.html

@@ -19,10 +19,10 @@
       name="description"
       content="Excalidraw is a whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them."
     />
-    <meta name="image" content="https://www.excalidraw.com/og-image.png" />
+    <meta name="image" content="https://excalidraw.com/og-image.png" />
 
     <!-- OpenGraph tags -->
-    <meta property="og:url" content="https://www.excalidraw.com/" />
+    <meta property="og:url" content="https://excalidraw.com" />
     <meta property="og:site_name" content="Excalidraw" />
     <meta property="og:type" content="website" />
     <meta property="og:title" content="Excalidraw" />
@@ -33,7 +33,7 @@
     <meta
       property="og:image"
       name="twitter:image"
-      content="https://www.excalidraw.com/og-image.pngg"
+      content="https://excalidraw.com/og-image.png"
     />
     <meta property="og:image:width" content="1280" />
     <meta property="og:image:height" content="669" />
@@ -45,10 +45,7 @@
       name="twitter:description"
       content="Excalidraw is a whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them."
     />
-    <meta
+    <meta name="twitter:image" content="https://excalidraw.com/og-image.png" />
-      name="twitter:image"
-      content="https://www.excalidraw.com/og-image.png"
-    />
 
     <link rel="icon" href="%PUBLIC_URL%/logo.png" />
     <link