diff --git a/CHANGELOG.md b/CHANGELOG.md
index c76f3c3d6d02..5e6c55ac6477 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -109,6 +109,8 @@
 
 * `[*]` [**BREAKING**] Drop support for Node.js version 4
   ([#4769](https://github.com/facebook/jest/pull/4769))
+* `[docs]` Wrap code comments at 80 characters
+  ([#4781](https://github.com/facebook/jest/pull/4781))
 * `[eslint-plugin-jest]` Removed from the Jest core repo, and moved to
   https://github.com/jest-community/eslint-plugin-jest
   ([#4867](https://github.com/facebook/jest/pull/4867))
diff --git a/docs/ExpectAPI.md b/docs/ExpectAPI.md
index 07e626e7ce74..850681244c41 100644
--- a/docs/ExpectAPI.md
+++ b/docs/ExpectAPI.md
@@ -875,7 +875,8 @@ describe('toMatchObject applied to arrays arrays', () => {
     expect([{foo: 'bar'}, {baz: 1}]).toMatchObject([{foo: 'bar'}, {baz: 1}]);
   });
 
-  // .arrayContaining "matches a received array which contains elements that are *not* in the expected array"
+  // .arrayContaining "matches a received array which contains elements that
+  // are *not* in the expected array"
   test('.toMatchObject does not allow extra elements', () => {
     expect([{foo: 'bar'}, {baz: 1}]).toMatchObject([{foo: 'bar'}]);
   });
diff --git a/docs/JestObjectAPI.md b/docs/JestObjectAPI.md
index 5c8291672b68..e4611f8b9987 100644
--- a/docs/JestObjectAPI.md
+++ b/docs/JestObjectAPI.md
@@ -130,7 +130,8 @@ jest.mock('../moduleName', () => {
   return jest.fn(() => 42);
 });
 
-const moduleName = require('../moduleName'); // This runs the function specified as second argument to `jest.mock`.
+// This runs the function specified as second argument to `jest.mock`.
+const moduleName = require('../moduleName');
 moduleName(); // Will return '42';
 ```
 
diff --git a/website/i18n/en.json b/website/i18n/en.json
index c1ac497f115f..019a820fe32c 100644
--- a/website/i18n/en.json
+++ b/website/i18n/en.json
@@ -1,4 +1,5 @@
 {
+  "_comment": "This file is auto-generated by write-translations.js",
   "localized-strings": {
     "next": "Next",
     "previous": "Previous",
@@ -24,7 +25,7 @@
     "tutorial-jquery": "DOM Manipulation",
     "tutorial-react": "Testing React Apps",
     "tutorial-react-native": "Testing React Native Apps",
-    "TutorialWebpack": "TutorialWebpack",
+    "tutorial-webpack": "webpack",
     "using-matchers": "Using Matchers",
     "webpack": "Using with webpack",
     "Docs": "Docs",
@@ -76,6 +77,9 @@
     "In this [video](https://egghead.io/lessons/javascript-test-javascript-with-jest) by [Kent C. Dodds](https://twitter.com/kentcdodds) you will learn how to install Jest and write your first unit test.|no description given": "In this [video](https://egghead.io/lessons/javascript-test-javascript-with-jest) by [Kent C. Dodds](https://twitter.com/kentcdodds) you will learn how to install Jest and write your first unit test.",
     "Who's using Jest?|no description given": "Who's using Jest?",
     "Jest is used by teams of all sizes to test web applications, node.js services, mobile apps, and APIs.|no description given": "Jest is used by teams of all sizes to test web applications, node.js services, mobile apps, and APIs.",
-    "More Jest Users|no description given": "More Jest Users"
+    "More Jest Users|no description given": "More Jest Users",
+    "Help Translate|recruit community translators for your project": "Help Translate",
+    "Edit this Doc|recruitment message asking to edit the doc source": "Edit",
+    "Translate this Doc|recruitment message asking to translate the docs": "Translate"
   }
 }
\ No newline at end of file