Revised contributing.md, edited docs (#1951)

* Added Overview page

* Revised Getting Started page

* Minor revision

* Edited readme, minor modifications to docs

* Removed sweep.yaml, .devcontainer, .ergomake

* Moved security.md to .github, added contributing.md

* changes as per code review

* updated contributing.md

* fixed broken links & added missing links in doc, improved structure

* fixed link in wsl setup

* fixed server link, added https cloning in yarn-setup

docs/package-lock.json

@@ -14,6 +14,7 @@
         "clsx": "^1.2.1",
         "graphiql": "^2.4.7",
         "graphql": "^16.6.0",
+        "iframe-resizer-react": "^1.1.0",
         "prism-react-renderer": "^1.3.5",
         "react": "^17.0.2",
         "react-dom": "^17.0.2",
@@ -7694,6 +7695,36 @@
         "postcss": "^8.1.0"
       }
     },
+    "node_modules/iframe-resizer": {
+      "version": "4.3.7",
+      "resolved": "https://registry.npmjs.org/iframe-resizer/-/iframe-resizer-4.3.7.tgz",
+      "integrity": "sha512-a3EGVScU9NtUpj6lWvGhVw3EfOw5AopRs5xGsQU385kWdgQt++OsD6PCnTV+8YkgBu/g28rLIh0EztFg9UQr1Q==",
+      "engines": {
+        "node": ">=0.8.0"
+      },
+      "funding": {
+        "type": "individual",
+        "url": "https://github.com/davidjbradshaw/iframe-resizer/blob/master/FUNDING.md"
+      }
+    },
+    "node_modules/iframe-resizer-react": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/iframe-resizer-react/-/iframe-resizer-react-1.1.0.tgz",
+      "integrity": "sha512-FrytSq91AIJaDgE+6uK/Vdd6IR8CrwLoZ6eGmL2qQMPTzF0xlSV2jaSzRRUh5V2fttD7vzl21jvBl97bV40eBw==",
+      "dependencies": {
+        "iframe-resizer": "^4.3.0",
+        "warning": "^4.0.3"
+      },
+      "engines": {
+        "node": ">=8",
+        "npm": ">=5"
+      },
+      "peerDependencies": {
+        "prop-types": ">=15.7.2",
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
     "node_modules/ignore": {
       "version": "5.2.4",
       "resolved": "https://registry.npmjs.org/ignore/-/ignore-5.2.4.tgz",
@@ -12974,6 +13005,14 @@
         "node": ">=10.0.0"
       }
     },
+    "node_modules/warning": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/warning/-/warning-4.0.3.tgz",
+      "integrity": "sha512-rpJyN222KWIvHJ/F53XSZv0Zl/accqHR8et1kpaMTD/fLCRxtV8iX8czMzY7sVZupTI3zcUTg8eycS2kNF9l6w==",
+      "dependencies": {
+        "loose-envify": "^1.0.0"
+      }
+    },
     "node_modules/watchpack": {
       "version": "2.4.0",
       "resolved": "https://registry.npmjs.org/watchpack/-/watchpack-2.4.0.tgz",