Merge pull request #2261 from allcentury/docs-clean-up

docs(components.md): add IoC link and determiner

Author: kamilmysliwiec

content/components.md

@@ -1,12 +1,12 @@
 ### Providers
 
-Providers are a fundamental concept in Nest. Many of the basic Nest classes may be treated as a provider – services, repositories, factories, helpers, and so on. The main idea of a provider is that it can be **injected** as dependency; this means objects can create various relationships with each other, and the function of "wiring up" instances of objects can largely be delegated to the Nest runtime system.
+Providers are a fundamental concept in Nest. Many of the basic Nest classes may be treated as a provider – services, repositories, factories, helpers, and so on. The main idea of a provider is that it can be **injected** as a dependency; this means objects can create various relationships with each other, and the function of "wiring up" instances of objects can largely be delegated to the Nest runtime system.
 
 <figure><img src="/assets/Components_1.png" /></figure>
 
 In the previous chapter, we built a simple `CatsController`. Controllers should handle HTTP requests and delegate more complex tasks to **providers**. Providers are plain JavaScript classes that are declared as `providers` in a [module](/modules).
 
-> info **Hint** Since Nest enables the possibility to design and organize dependencies in a more OO-way, we strongly recommend following the [SOLID](https://en.wikipedia.org/wiki/SOLID) principles.
+> info **Hint** Since Nest enables the possibility to design and organize dependencies in a more OO way, we strongly recommend following the [SOLID](https://en.wikipedia.org/wiki/SOLID) principles.
 
 #### Services
 
@@ -50,7 +50,7 @@ export class CatsService {
 
 > info **Hint** To create a service using the CLI, simply execute the `$ nest g service cats` command.
 
-Our `CatsService` is a basic class with one property and two methods. The only new feature is that it uses the `@Injectable()` decorator. The `@Injectable()` decorator attaches metadata, which declares that `CatsService`  is a class that can be managed by the Nest IoC container. By the way, this example also uses a `Cat` interface, which probably looks something like this:
+Our `CatsService` is a basic class with one property and two methods. The only new feature is that it uses the `@Injectable()` decorator. The `@Injectable()` decorator attaches metadata, which declares that `CatsService`  is a class that can be managed by the Nest [IoC](https://en.wikipedia.org/wiki/Inversion_of_control) container. By the way, this example also uses a `Cat` interface, which probably looks something like this:
 
 ```typescript
 @@filename(interfaces/cat.interface)