diff --git a/Docs/Making_Your_Own_Theme.md b/Docs/Making_Your_Own_Theme.md
index 0a09c43198..de21484a53 100644
--- a/Docs/Making_Your_Own_Theme.md
+++ b/Docs/Making_Your_Own_Theme.md
@@ -10,7 +10,7 @@ Requirements
 Before you start, you should have the following qualifications:
 
 - You are a longtime contributor and do know the OpenStreetMap tagging scheme very well.
-- You are not afraid of editing a JSON file
+- You are not afraid of editing a JSON file. If you don't know what a JSON-file is, [read this intro](https://www.w3schools.com/whatis/whatis_json.asp)
 - Your theme will add well-understood tags (aka: the tags have a wiki page, are not controversial and are objective)
 - You are in contact with your local OpenStreetMap community and do know some other members to discuss tagging and to
   help testing
diff --git a/Models/ThemeConfig/Json/LineRenderingConfigJson.ts b/Models/ThemeConfig/Json/LineRenderingConfigJson.ts
index b29f9a9919..bb31da29ec 100644
--- a/Models/ThemeConfig/Json/LineRenderingConfigJson.ts
+++ b/Models/ThemeConfig/Json/LineRenderingConfigJson.ts
@@ -33,7 +33,7 @@ export default interface LineRenderingConfigJson {
     lineCap?: "round" | "square" | "butt" | string | TagRenderingConfigJson
 
     /**
-     * Wehter or not to fill polygons
+     * Whether or not to fill polygons
      */
     fill?: "yes" | "no" | TagRenderingConfigJson
 
@@ -51,4 +51,4 @@ export default interface LineRenderingConfigJson {
      * This simplifies programming. Refer to the CalculatedTags.md-documentation for more details
      */
     offset?: number | TagRenderingConfigJson
-}
\ No newline at end of file
+}
diff --git a/Models/ThemeConfig/Json/TagRenderingConfigJson.ts b/Models/ThemeConfig/Json/TagRenderingConfigJson.ts
index 2938083ba7..1ccf1c2f85 100644
--- a/Models/ThemeConfig/Json/TagRenderingConfigJson.ts
+++ b/Models/ThemeConfig/Json/TagRenderingConfigJson.ts
@@ -2,7 +2,7 @@ import {AndOrTagConfigJson} from "./TagConfigJson";
 
 /**
  * A TagRenderingConfigJson is a single piece of code which converts one ore more tags into a HTML-snippet.
- * For an _editable_ tagRenerdering, use 'QuestionableTagRenderingConfigJson' instead, which extends this one
+ * For an _editable_ tagRendering, use 'QuestionableTagRenderingConfigJson' instead, which extends this one
  */
 export interface TagRenderingConfigJson {
 
@@ -91,4 +91,4 @@ export interface TagRenderingConfigJson {
         }
 
     }[]
-}
\ No newline at end of file
+}