make django version more flexiable with a gitbook variable

Dayof · Dayof · commit d4fb9f75f168 · 2018-07-11T14:55:51.000-03:00
diff --git a/book.json b/book.json
@@ -1,5 +1,8 @@
 {
     "gitbook": ">=3.2.0",
+    "variables": {
+      "django_version": "2.0.6"
+    },
     "links": {
         "sidebar": {
             "Need help? Talk to us!": "https://gitter.im/DjangoGirls/tutorial"
diff --git a/en/django_installation/instructions.md b/en/django_installation/instructions.md
@@ -183,18 +183,18 @@ In your `djangogirls/requirements.txt` file you should add the following text:
 
 {% filename %}djangogirls/requirements.txt{% endfilename %}
 ```
-Django==2.0.6
+Django=={{ book.django_version }}
 ```
 
-Now, run ``pip install -r requirements.txt`` to install Django.
+Now, run `pip install -r requirements.txt` to install Django.
 
 {% filename %}command-line{% endfilename %}
 ```
 (myvenv) ~$ pip install -r requirements.txt
-Collecting Django==2.0.6 (from -r requirements.txt (line 1))
-  Downloading Django-2.0.6-py3-none-any.whl (7.1MB)
+Collecting Django=={{ book.django_version }} (from -r requirements.txt (line 1))
+  Downloading Django-{{ book.django_version }}-py3-none-any.whl (7.1MB)
 Installing collected packages: Django
-Successfully installed Django-2.0.6
+Successfully installed Django-{{ book.django_version }}
 ```
 
 <!--sec data-title="Installing Django: Windows" data-id="django_err_windows"

Original file line number	Diff line number	Diff line change
`@@ -1,5 +1,8 @@`
`1`	`1`	`{`
`2`	`2`	`"gitbook": ">=3.2.0",`
	`3`	`+ "variables": {`
	`4`	`+ "django_version": "2.0.6"`
	`5`	`+ },`
`3`	`6`	`"links": {`
`4`	`7`	`"sidebar": {`
`5`	`8`	`"Need help? Talk to us!": "https://gitter.im/DjangoGirls/tutorial"`