Fix deprecations (#52)

## Motivation

We have a couple of warnings on elixir 1.11

```
==> xcribe
Compiling 22 files (.ex)
warning: Supervisor.Spec.worker/2 is deprecated. Use the new child specifications outlined in the Supervisor module instead
  lib/xcribe.ex:110: Xcribe.children/0
```

## Proposed solution

- Remove Supervisor.Spec
- Elixir 1.11 was not added to CI, because there isn't any version available of this release to use in the github actions https://www.erlang-solutions.com/resources/download.html

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.7.4] - 2020-10-19
+
+- Remove usage of deprecated `Supervisor.Spec`
+
 ## [0.7.2] - 2020-06-11
 
 ### Enhancements
@@ -85,7 +89,8 @@ Improve CI/CD flow:
 - New "tags" parameter to operations object in Swagger format.
 - Add changelog and Makefile.
 
-[unreleased]: https://github.com/brainn-co/xcribe/compare/v0.7.3...master
+[unreleased]: https://github.com/brainn-co/xcribe/compare/v0.7.4...master
+[0.7.4]: https://github.com/brainn-co/xcribe/compare/v0.7.3...v0.7.4
 [0.7.3]: https://github.com/brainn-co/xcribe/compare/v0.7.2...v0.7.3
 [0.7.2]: https://github.com/brainn-co/xcribe/compare/v0.7.1...v0.7.2
 [0.7.1]: https://github.com/brainn-co/xcribe/compare/v0.7.0...v0.7.1

Makefile

@@ -49,6 +49,6 @@ release: ## Bumps the version and creates the new tag
 	  perl -p -i -e "s/\"\~> ${VERSION}\"/\"\~> $$NEW_VERSION\"/g" ${README_FILE} && \
 	  printf "\t${DIM_COLOR}Updating ${CHANGELOG_FILE} version${DEFAULT_COLOR}\n" && \
 	  perl -p -i -e "s/## \[Unreleased\]/## \[Unreleased\]\\n\\n## \[$$NEW_VERSION\] - ${DATE}/g" ${CHANGELOG_FILE} && \
-	  perl -p -i -e "s/${REPO}\/${VERSION}...master/${REPO}\/$$NEW_VERSION...master/g" ${CHANGELOG_FILE} && \
-	  perl -p -i -e "s/...master/...master\\n\[$$NEW_VERSION\]: ${REPO}\/${VERSION}...$$NEW_VERSION/g" ${CHANGELOG_FILE} && \
+	  perl -p -i -e "s/${REPO}\/v${VERSION}...master/${REPO}\/v$$NEW_VERSION...master/g" ${CHANGELOG_FILE} && \
+	  perl -p -i -e "s/...master/...master\\n\[$$NEW_VERSION\]: ${REPO}\/v${VERSION}...v$$NEW_VERSION/g" ${CHANGELOG_FILE} && \
 	  printf "\t${DIM_COLOR}Recording changes to the repository${DEFAULT_COLOR}\n"

README.md

@@ -20,7 +20,7 @@ mix.exs
 ```elixir
 def deps do
   [
-    {:xcribe, "~> 0.7.3"}
+    {:xcribe, "~> 0.7.4"}
   ]
 end
 ```

lib/xcribe.ex

@@ -45,7 +45,7 @@ defmodule Xcribe do
           description "The best API in the world"
           host "http://your-api.us"
         end
-      end  
+      end
 
   See `Xcribe.Information` for more details about custom information.
 
@@ -61,7 +61,7 @@ defmodule Xcribe do
 
   eg
 
-      config :xcribe, 
+      config :xcribe,
         information_source: YourApp.YouModuleInformation,
         format: :swagger
 
@@ -105,8 +105,6 @@ defmodule Xcribe do
   end
 
   defp children do
-    import Supervisor.Spec
-
-    [worker(Xcribe.Recorder, [])]
+    [{Xcribe.Recorder, []}]
   end
 end

lib/xcribe/recorder.ex

@@ -5,7 +5,7 @@ defmodule Xcribe.Recorder do
 
   alias Xcribe.{Request, Request.Error}
 
-  def start_link do
+  def start_link(_opts \\ []) do
     GenServer.start_link(__MODULE__, [], name: __MODULE__)
   end
 

mix.exs

@@ -1,7 +1,7 @@
 defmodule Xcribe.MixProject do
   use Mix.Project
 
-  @version "0.7.3"
+  @version "0.7.4"
   @description "A lib to generate API documentation from test specs"
   @links %{"GitHub" => "https://github.com/brainn-co/xcribe"}
 

test/support/application.ex

@@ -2,10 +2,8 @@ defmodule Xcribe.Support.Application do
   use Application
 
   def start(_type, _args) do
-    import Supervisor.Spec
-
     children = [
-      supervisor(Xcribe.Endpoint, [])
+      {Xcribe.Endpoint, []}
     ]
 
     opts = [strategy: :one_for_one, name: Xcribe.Support.Supervisor]