Apply suggestions from code review

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

Co-authored-by: Fredrik Adelöw <freben@gmail.com>

docs/features/techdocs/getting-started.md

@@ -29,7 +29,7 @@ yarn add @backstage/plugin-techdocs
 
 Once the package has been installed, you need to import the plugin in your app.
 
-In `packages/app/src/App.tsx`, import TechDocsPage and add the following to
+In `packages/app/src/App.tsx`, import `TechDocsPage` and add the following to
 `FlatRoutes`:
 
 ```tsx

docs/overview/architecture-overview.md

@@ -95,10 +95,10 @@ any route we want for the page, as long as it doesn't collide with the routes
 that we choose for the other plugins in the app.
 
 These components that are exported from plugins are referred to as "Plugin
-Extension Components", or "Extensions Components". They are regular React
+Extension Components", or "Extension Components". They are regular React
 components, but in addition to being able to be rendered by React, they also
-contain various pieces of metadata that is used to write together the entire
-app. Extensions components are created using `create*Extension` methods, which
+contain various pieces of metadata that is used to wire together the entire
+app. Extension components are created using `create*Extension` methods, which
 you can read more about in the
 [composability documentation](../plugins/composability.md).
 

plugins/api-docs/README.md

@@ -33,7 +33,7 @@ To link that a component provides or consumes an API, see the [`providesApis`](h
 yarn add @backstage/plugin-api-docs
 ```
 
-2. Add the `ApiExplorerPage` extensions to the app:
+2. Add the `ApiExplorerPage` extension to the app:
 
 ```tsx
 // packages/app/src/App.tsx

plugins/catalog-import/README.md

@@ -23,7 +23,7 @@ Some features are not yet available for all supported Git providers.
 yarn add @backstage/plugin-catalog-import
 ```
 
-2. Add the `CatalogImportPage` extensions to the app:
+2. Add the `CatalogImportPage` extension to the app:
 
 ```tsx
 // packages/app/src/App.tsx

plugins/rollbar/README.md

@@ -30,7 +30,7 @@ const serviceEntityPage = (
 );
 ```
 
-4. Setup the `app.config.yaml` and account token environment variable
+4. Setup the `app-config.yaml` and account token environment variable
 
 ```yaml
 # app.config.yaml