Fix typos (#3646)

docs/features/software-catalog/descriptor-format.md

@@ -407,7 +407,7 @@ The current set of well-known and common values for this field is:
 
 - `service` - a backend service, typically exposing an API
 - `website` - a website
-- `library` - a software library, such as an NPM module or a Java library
+- `library` - a software library, such as an npm module or a Java library
 
 ### `spec.lifecycle` [required]
 
@@ -558,7 +558,7 @@ The current set of well-known and common values for this field is:
 
 - `service` - a backend service, typically exposing an API
 - `website` - a website
-- `library` - a software library, such as an NPM module or a Java library
+- `library` - a software library, such as an npm module or a Java library
 
 ### `spec.templater` [required]
 

docs/features/techdocs/architecture.md

@@ -21,7 +21,7 @@ looking at. In response, it receives the static files (HTML, CSS, JSON, etc.) to
 render on the page in TechDocs/Backstage.
 
 The static files consist of HTML, CSS and Images generated by MkDocs. We remove
-all the Javascript before adding them to Backstage for security reasons. And
+all the JavaScript before adding them to Backstage for security reasons. And
 there are some additional techdocs metadata JSON files that TechDocs needs to
 render a site.
 
@@ -59,7 +59,7 @@ Similar to how it is done in the Basic setup, the TechDocs Reader requests
 your configured storage solution for the necessary files and returns them to
 TechDocs Reader.
 
-We will provide instructions, scripts and/or templates (e.g. GitHub actions) to
+We will provide instructions, scripts and/or templates (e.g. GitHub Actions) to
 build docs in your CI/CD system.
 [Track progress here.](https://github.com/backstage/backstage/issues/3400) You
 will be able to use `techdocs-cli` to build docs and publish the generated docs