Fix typos

CONTRIBUTING.md

@@ -136,7 +136,7 @@ development of the project.
 ```
  $ npm run build    # Transform the code with 'babel'
  $ npm run docs     # Generate the documentation with 'esdoc'
- $ npm run debug    # Run the applicaiton in debug mode
+ $ npm run debug    # Run the application in debug mode
  $ npm run dev      # Run the application in development mode
  $ npm run flow     # Check flow typings
  $ npm run lint     # Check javascript style

dredd.hooks.js

@@ -1,4 +1,4 @@
-// Import the neccesary modules.
+// Import the necessary modules.
 // @flow
 import 'dotenv/config'
 // @flow-ignore

manual/tutorial.md

@@ -228,7 +228,7 @@ The following `query` properties can be used:
  - offset              # The page to search on
 ```
 
-Only anime will be scraped on [nyaa.se](https://nyaa.se/), this is because [nyaa.se](https://nyaa.se/) is focuses on East Asian content. The [`Nyaa`]() class will automaticly add the `category` and `sub_category` properties. The `offset` does not to be indicated since the algorithm for scraping [nyaa.se](https://nya.se/) will go through all the available pages (max of 100 pages/10.500 torrent due to site limitations).
+Only anime will be scraped on [nyaa.se](https://nyaa.se/), this is because [nyaa.se](https://nyaa.se/) is focuses on East Asian content. The [`Nyaa`]() class will automatically add the `category` and `sub_category` properties. The `offset` does not to be indicated since the algorithm for scraping [nyaa.se](https://nya.se/) will go through all the available pages (max of 100 pages/10.500 torrent due to site limitations).
 
 **An example of a provider:**
 ```javascript

src/middleware/Cli.js

@@ -47,7 +47,7 @@ export default class Cli extends BaseCli {
   name: string
 
   /**
-   * The verion of the Cli program.
+   * The version of the Cli program.
    * @type {string}
    */
   version: string