build: fix templating

.metwork-framework/README.md

@@ -4,7 +4,7 @@ This is a [jinja2](http://jinja.pocoo.org/) extension to use [humanize](https://
 
 ## Syntax
 
-The generic syntax is `{{ 'VALUE'|humanize_{humanize_fn}([humanize_fn_args]) }}`.
+The generic syntax is `{% raw %}{{ 'VALUE'|humanize_{humanize_fn}([humanize_fn_args]) }}{% endraw %}`.
 
 Following [humanize](https://python-humanize.readthedocs.io/) functions are currently mapped:
 
@@ -25,7 +25,7 @@ have to use:
 
 ```
 
-The file size is: {{ 30000000|humanize_naturalsize(binary=False, gnu=True) }}
+The file size is: {% raw %}{{ 30000000|humanize_naturalsize(binary=False, gnu=True) }}{% endraw %}
 
 ```
 
@@ -47,7 +47,7 @@ from jinja2 import Template, Environment
 # We load the extension in a jinja2 Environment
 env = Environment(extensions=["jinja2_humanize_extension.HumanizeExtension"])
 
-template = env.from_string("The file size is : {{ 30000000|humanize_naturalsize() }}")
+template = env.from_string("The file size is : {% raw %}{{ 30000000|humanize_naturalsize() }}{% endraw %}")
 result = template.render()
 
 # [...]