diff --git a/SUMMARY.md b/SUMMARY.md
index 90964aa..97f9d4b 100644
--- a/SUMMARY.md
+++ b/SUMMARY.md
@@ -29,7 +29,7 @@
   * [Presets](overview/features/presets.md)
   * [Print History and Statistics](overview/features/print-history-and-statistics.md)
   * [Query devices](overview/features/query-devices.md)
-  * [Build-in Themes](overview/features/build-in-themes.md)
+  * [Built-in Themes](overview/features/built-in-themes.md)
   * [Custom Themes](overview/features/themes/README.md)
     * [Prepare](overview/features/themes/prepare.md)
     * [Backgrounds](overview/features/themes/backgrounds.md)
@@ -67,16 +67,16 @@
 ## FAQ
 
 * [Mainsail](faq/mainsail.md)
-* [Klipper warnings](faq/klipper\_warnings/README.md)
-  * [Deprecated Values](faq/klipper\_warnings/deprecated\_value.md)
-  * [Deprecated Options](faq/klipper\_warnings/deprecated\_option.md)
-  * [Runtime Warning](faq/klipper\_warnings/runtime-warning.md)
-* [Moonraker warnings](faq/moonraker\_warnings/README.md)
-  * [PolicyKit Permissions](faq/moonraker\_warnings/policykit-permissions.md)
-* [Klipper errors](faq/klipper\_errors/README.md)
-  * [MCU Protocol error](faq/klipper\_errors/command-format-mismatch.md)
-* [Mainsail errors](faq/mainsail\_errors/README.md)
-  * [Unauthorized](faq/mainsail\_errors/connection-unauthorized.md)
+* [Klipper warnings](faq/klipper_warnings/README.md)
+  * [Deprecated Values](faq/klipper_warnings/deprecated_value.md)
+  * [Deprecated Options](faq/klipper_warnings/deprecated_option.md)
+  * [Runtime Warning](faq/klipper_warnings/runtime-warning.md)
+* [Moonraker warnings](faq/moonraker_warnings/README.md)
+  * [PolicyKit Permissions](faq/moonraker_warnings/policykit-permissions.md)
+* [Klipper errors](faq/klipper_errors/README.md)
+  * [MCU Protocol error](faq/klipper_errors/command-format-mismatch.md)
+* [Mainsail errors](faq/mainsail_errors/README.md)
+  * [Unauthorized](faq/mainsail_errors/connection-unauthorized.md)
 * [Getting Help](faq/getting-help/README.md)
   * [Discord](faq/getting-help/discord.md)
   * [GitHub Discussions](faq/getting-help/github-discussions.md)
diff --git a/faq/mainsail.md b/faq/mainsail.md
index a7e1cdf..19e362f 100644
--- a/faq/mainsail.md
+++ b/faq/mainsail.md
@@ -4,10 +4,10 @@
 
 * **Estimate**\
   The remaining time is calculated based on configurable factors, from which the average is derived.\
-  Available factors_: File, Filament (see below)_
+  Available factors_: File, Filament (see below)_
 * **Slicer**\
   The remaining time is determined taking into account the total printing time of the slicer.\
-  _(see below: factor slicer)_
+  &#xNAN;_(see below: factor slicer)_
 * **Print**\
   Print time is the elapsed time since the first G-code movement. This usually does not include heating time or other preparations.
 * **Total**\
@@ -15,7 +15,7 @@
 *   **ETA (estimated time of arrival)**\
     The expected time of print completion. Based on configurable factors, from which the average is derived.
 
-    Available factors_: File, Slicer, Filament (see below)_
+    Available factors_: File, Slicer, Filament (see below)_
 
 ### Calculation Factors <a href="#faktoren" id="faktoren"></a>
 
diff --git a/overview/features/build-in-themes.md b/overview/features/built-in-themes.md
similarity index 86%
rename from overview/features/build-in-themes.md
rename to overview/features/built-in-themes.md
index a0618b2..790f09f 100644
--- a/overview/features/build-in-themes.md
+++ b/overview/features/built-in-themes.md
@@ -1,16 +1,16 @@
 ---
 description: >-
-  Build-in themes are pre-designed themes. They provide users with a quick and
+  Built-in themes are pre-designed themes. They provide users with a quick and
   easy way to customize the look and feel of their interface without having to
   create a design from scratch.
 ---
 
-# Build-in Themes
+# Built-in Themes
 
-In Mainsail, there are two groups that are permitted to have build-in themes. The first group consists of all vendor sponsors, who receive exclusive themes as a recognition of their support. The second group includes large open source communities.&#x20;
+In Mainsail, there are two groups that are permitted to have built-in themes. The first group consists of all vendor sponsors, who receive exclusive themes as a recognition of their support. The second group includes large open source communities.&#x20;
 
 {% hint style="info" %}
-If you are a maintainer of a large open-source 3d printing project, please contact the Mainsail crew on the Discord server for a build-in theme.
+If you are a maintainer of a large open-source 3d printing project, please contact the Mainsail crew on the Discord server for a built-in theme.
 {% endhint %}
 
 ### Change theme in Mainsail
@@ -31,7 +31,7 @@ The following themes are currently available in Mainsail:
 * Prusa Research (Sponsor)
 * YUMI (Sponsor)
 
-### Possible options in Build-in themes
+### Possible options in Built-in themes
 
 * Sidebar Logo (colorizeable in the UI-Settings)
 * Primary Color