diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 781536638d..638f187465 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ jobs:
         with:
           files: '**/*.md'
           separator: ","
-      - uses: DavidAnson/markdownlint-cli2-action@v22
+      - uses: DavidAnson/markdownlint-cli2-action@v23
         if: steps.changed-files.outputs.any_changed == 'true'
         with:
           globs: "${{ steps.changed-files.outputs.all_changed_files }},!_includes"
diff --git a/.markdownlint.json b/.markdownlint.json
index 2db5196efd..aa59f5565a 100644
--- a/.markdownlint.json
+++ b/.markdownlint.json
@@ -8,4 +8,4 @@
     "MD033": false,
     "MD036": false,
     "MD058": false
-}
+}
\ No newline at end of file
diff --git a/README.md b/README.md
index 744af1333d..3861f54a98 100755
--- a/README.md
+++ b/README.md
@@ -51,7 +51,7 @@ The markdown files are linted via [markdownlint-cli](https://github.com/igorshub
 You may need to configure the disabled rules specified in [.markdownlint.json](.markdownlint.json) directly in your project settings. You can invoke linting in CLI via
 
 ```bash
-markdownlint --config .markdownlint.json --ignore-path .markdownlintignore "**/*.md"
+markdownlint --config .markdownlint.json "**/*.md"
 ```
 
 <a name="running-jekyll-locally"></a>
diff --git a/_layouts/analytics.html b/_layouts/analytics.html
index b56424190e..51b4b3e50f 100644
--- a/_layouts/analytics.html
+++ b/_layouts/analytics.html
@@ -32,9 +32,9 @@
             <div class="col-md-9" role="main">
               <div class="bs-docs-section">
 
-                <h3>{{ page.title }}</h3>
+                <h1>{{ page.title }}</h1>
 
-                <h3>Features</h3>
+                <h2>Features</h2>
 
                 {{content}}
 
diff --git a/_layouts/bidder.html b/_layouts/bidder.html
index 62a52c9e95..0b88d873fe 100644
--- a/_layouts/bidder.html
+++ b/_layouts/bidder.html
@@ -33,7 +33,7 @@
               <div class="bs-docs-section">
                 <p><a href="/dev-docs/bidders.html">Back to Bidders</a></p>
 
-                <h2>{{ page.title }}</h2>
+                <h1>{{ page.title }}</h1>
 
                 {% if page.enable_download == false %}
                   <div class="pb-bidder-s2">
@@ -43,17 +43,17 @@ <h4>Note:</h4> This adapter is not available in current versions of Prebid.js. R
 
                 {% if page.s2s_only == true %}
                   <div class="pb-bidder-s2">
-                    <h3>Note:</h3> This is a Prebid Server adapter only.
+                    <h2>Note:</h2> This is a Prebid Server adapter only.
                   </div>
                 {% endif %}
 
-                <h3>Features</h3>
+                <h2>Features</h2>
 
                 {% include dev-docs/bidder-meta-data.html page=page %}
 
                 {{content}}
 
-                <h3>"Send All Bids" Ad Server Keys</h3>
+                <h2>"Send All Bids" Ad Server Keys</h2>
 
                 <font size="-1">These are the bidder-specific keys that would be targeted within GAM in a Send-All-Bids scenario. GAM truncates keys to 20 characters.</font>
 
diff --git a/_sass/components/_pb.scss b/_sass/components/_pb.scss
index 9033387d5d..e60c411026 100644
--- a/_sass/components/_pb.scss
+++ b/_sass/components/_pb.scss
@@ -24,7 +24,7 @@
 }
 
 .pb-content {
-  $lt-content-font-size: 19px;
+  $lt-content-font-size: 16px;
 
   padding: 22px 30px;
   border: 1px solid $t-divider-color;
diff --git a/dev-docs/analytics/agma.md b/dev-docs/analytics/agma.md
index 1129d80856..947b9784f3 100644
--- a/dev-docs/analytics/agma.md
+++ b/dev-docs/analytics/agma.md
@@ -10,14 +10,14 @@ prebid_member: false
 gvl_id: 1122
 ---
 
-#### Analytics Options
+## Analytics Options
 
 {: .table .table-bordered .table-striped }
 | Name         | Scope              | Description                                                                                                                 | Example                                                                             | Type             |
 |-------------|---------|--------------------|-----------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------|------------------|
 | code | required  | Provided by agma | `'my-code'`  | string |
 
-### Example Configuration
+## Example Configuration
 
 ```javascript
 pbjs.enableAnalytics({
@@ -28,6 +28,6 @@ pbjs.enableAnalytics({
 });
 ```
 
-#### Registration
+## Registration
 
 Please contact [team-internet@agma-mmc.de](mailto:team-internet@agma-mmc.de) for signup.
diff --git a/dev-docs/bidders/ttd.md b/dev-docs/bidders/ttd.md
index adc903af42..88a2b7c367 100644
--- a/dev-docs/bidders/ttd.md
+++ b/dev-docs/bidders/ttd.md
@@ -38,11 +38,11 @@ Note: The Trade Desk Header Bidding adapter requires setup and approval before b
 | Name | Scope | Description | Example | Type |
 | --- | --- | --- | --- | --- |
 | `supplySourceId` | required | The TTD-provided supply source name. | `'supplier'` | `String` |
-| `publisherId` | required | The publisher ID. If there is a sellers.json, this should be the same as the seller_id in the sellers.json for the site being trafficked. If there is no sellers.json, this should be hardcoded to "1". | `'1427ab10f2e448057ed3b422'` | `String` |
+| `publisherId` | required | The publisher ID. If there is a sellers.json, this should be the same as the seller_id in the sellers.json for the site being trafficked. If there is no sellers.json, this should be hardcoded to "1". | 1427ab10f2e448057ed3b422 | `String` |
 | `placementId` | optional | This field is optional if GPID is passed through the GPT module <https://docs.prebid.org/dev-docs/modules/gpt-pre-auction.html>. If that module isn't used, the GPID value should be passed in this field. | `'/1111/home#header'` | `String` |
 | `banner` | optional | Display banner targeting parameters. See the banner section below. | `{}` | `object` |
 | `bidfloor` | optional | Sets a bid floor price | `0.95` | `Float` |
-| `customBidderEndpoint` | optional | Only set if TTD has provided a custom endpoint. If set the custom endpoint will take precedent over the hard-coded endpoints | `https://customBidderEndpoint/bid/bidder/` | `String` |
+| `customBidderEndpoint` | optional | Only set if TTD has provided a custom endpoint. If set the custom endpoint will take precedent over the hard-coded endpoints | `https://custom/bid/` | `String` |
 
 ## Banner Object
 
@@ -54,7 +54,7 @@ The following banner parameters are supported:
 | --- | --- | --- | --- | --- |
 | `expdir` | optional | Directions in which the banner may expand. See "Expandable Direction" in the [OpenRTB 2.5 docs](https://www.iab.com/wp-content/uploads/2016/03/OpenRTB-API-Specification-Version-2-5-FINAL.pdf) for possible values. | `[1, 3]` | `Array[integer]` |
 
-## `mediaTypes.banner` Parameters
+### `mediaTypes.banner` Parameters
 
 The TTD adapter for banner uses certain parameters in the AdUnit's
 [mediaTypes.banner](https://docs.prebid.org/dev-docs/adunit-reference.html#adUnit.mediaTypes.banner) definition. Specifically, `sizes` is required for banner ad units. `pos` is recommended.
@@ -90,7 +90,7 @@ var bannerAdUnit = {
 
 ## Video
 
-## `mediaTypes.video` Parameters
+### `mediaTypes.video` Parameters
 
 The TTD adapter for video requires certain parameters in the AdUnit's
 [mediaTypes.video](https://docs.prebid.org/dev-docs/adunit-reference.html#adUnit.mediaTypes.video) definition. Specifically, `maxduration`, `api`, `mimes`, `plcmt`, and `protocols` are all required for video ad units. `playerSize`, `startdelay`, `playbackmethod`, and `pos` are recommended. `minduration`, `minbitrate`, `maxbitrate`, `skip`, `skipmin`, and `skipafter` are optional.