diff --git a/frontend/README.md b/frontend/README.md
index 98e81b74..b2df769b 100644
--- a/frontend/README.md
+++ b/frontend/README.md
@@ -9,7 +9,6 @@
 
 ### CSS Styles
 
-- although styles have `scss` extension, it is actually pack of post-css plugins, so syntax differs, for example in `calc` function.
 - now we are migrating to css-modules and this is recomended way to stylization. A file with styles should be named like `component.module.css`
 - old component styles use BEM notation (at least it should): `block__element_modifier`. Also there are `mix` classes: `block_modifier`.
 - new way to naming CSS selectors is camel-case like `blockElemenModifier` and use `classnames` to combine it
@@ -20,12 +19,12 @@
 
 - imports for typescript, javascript files should be without extension: `./index`, not `./index.ts`
 - if file resides in the same directory or in subdirectory import should be relative: `./types/something`
-- otherwise it should start from ``namespace:`common/store`which mapped to`/appcommon/store.ts` in webpack, tsconfig and jest
+- otherwise it should be imported by absolute path relative to `src` folder like `common/store` which mapped to `./app/common/store.ts` in webpack, tsconfig and jest
 
 ### Testing
 
 - project uses `jest` as test harness.
-- jest check files that match regex `\.test\.(j|t)s(x?)$`, i.e `comment.test.tsx`, `comment.test.js`
+- jest check files that match regex `\.(test|spec)\.ts(x?)$`, i.e `comment.test.tsx`, `comment.spec.ts`
 - tests are running on push attempt
 - example tests can be found in `./app/store/user/reducers.test.ts`, `./app/components/auth-panel/auth-panel.test.tsx`
 
diff --git a/frontend/app/common/__mocks__/constants.ts b/frontend/app/common/__mocks__/constants.ts
index 44374a0a..d3857d4a 100644
--- a/frontend/app/common/__mocks__/constants.ts
+++ b/frontend/app/common/__mocks__/constants.ts
@@ -1,7 +1,6 @@
-// @ts-ignore
-const mock: typeof import('common/constants') = {
+const constantsMock: typeof import('common/constants') = {
   ...jest.requireActual('common/constants'),
   BASE_URL: 'https://demo.remark42.com/',
 };
 
-module.exports = mock;
+module.exports = constantsMock;
diff --git a/frontend/app/common/__mocks__/settings.ts b/frontend/app/common/__mocks__/settings.ts
index 6b0133c5..2be1bb6e 100644
--- a/frontend/app/common/__mocks__/settings.ts
+++ b/frontend/app/common/__mocks__/settings.ts
@@ -1,5 +1,4 @@
-// @ts-ignore
-const mock: typeof import('common/settings') = {
+const settingsMock: typeof import('common/settings') = {
   ...jest.requireActual('common/settings'),
   siteId: 'remark',
   pageTitle: 'remark test',
@@ -17,4 +16,4 @@ const mock: typeof import('common/settings') = {
   },
 };
 
-module.exports = mock;
+module.exports = settingsMock;
diff --git a/frontend/package.json b/frontend/package.json
index 1ec3ba7c..46f87cf6 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -1,5 +1,4 @@
 {
-  "private": true,
   "name": "remark42",
   "version": "0.16.0",
   "license": "MIT",
@@ -18,7 +17,7 @@
     "lint:eslint": "eslint --max-warnings=0 '**/*.{ts?(x),js}'",
     "lint:stylelint": "stylelint 'app/**/*.css' 'templates/**'",
     "size": "cross-env NODE_ENV=production run-s build check:size",
-    "prettier": "prettier --write './**/*.{js,ts,tsx,css}'",
+    "prettier": "prettier --write './**/*.{js,ts,tsx,css,html}'",
     "translation:extract": "formatjs extract --out-file=./extracted-messages/messages.json '**/!(*.d).ts?(x)'",
     "translation:generate": "node ./tasks/generateTranslations.js",
     "translation:check": "node ./tasks/checkTranslations.js"
diff --git a/frontend/remark.image b/frontend/remark.image
new file mode 100644
index 00000000..c6b90daf
Binary files /dev/null and b/frontend/remark.image differ