Some irrilevant fixes in READMEs

.devcontainer/README.md

@@ -6,14 +6,14 @@ A devcontainer is ready to use for the developers. A set of packages without ngi
 
 To build and install the last stable version of [nginx](http://nginx.org/en/download.html) (1.22.1) you have to copy the ```nginx.repo``` file (it is contained in the ```docker``` directory) into the ```/etc/yum.repos.d/``` directory and install nginx with yum:
 
-```
+```shell
 $ sudo cp docker/nginx.repo /etc/yum.repos.d/
 $ sudo yum install -y nginx
 ```
 
 Otherwise, if you want to build and install the last stable version of [nginx](http://nginx.org/en/download.html) (1.22.1) with the httpg patch, a bash library is ready to use. You can source it and follow the commands below:
 
-```
+```shell
 $ source .devcontainer/assets/build-library.sh
 $ downloadNginx
 $ buildHttpgNginxRPM
@@ -24,7 +24,7 @@ $ sudo rpm -ivh ~/rpmbuild/RPMS/x86_64/nginx-httpg-1.22.1-1.el7.ngx.x86_64.rpm
 
 If you want to build and install the `ngx_http_voms_module`, nginx have to be installed in the container (see the previous section). When this requirement is satisfied, you can use the library contained in the ```.devcontainer/assets``` folder as follows (NOTE: if you have already download nginx source file, you can skip the relative command):
 
-```
+```shell
 $ source .devcontainer/assets/build-library.sh
 $ downloadNginx
 $ buildVomsModuleRPM

README.md

@@ -6,7 +6,7 @@
 
 `ngx_http_voms_module` is a module for the [Nginx web server](https://www.nginx.org/) that enables client-side authentication based on X.509 proxy certificates augmented with VOMS Attribute Certificates, typically obtained from a [Virtual Organization Membership Service](https://italiangrid.github.io/voms/) (VOMS) server.
 
-The module defines a set of [*embedded* variables](###embedded-variables), whose values are extracted from the first Attribute Certificate found in the certificate chain.
+The module defines a set of *embedded* variables, whose values are extracted from the first Attribute Certificate found in the certificate chain.
 
 ### Embedded Variables
 
@@ -99,7 +99,7 @@ The software dependecies are listed in the [provide-deps](docker/library-scripts
 
 The nginx source files are also needed. To download them in ```/tmp/nginx-x.y.z``` you can execute:
 
-```
+```shell
 $ ngxVersion=<version>
 $ wget -O /tmp/nginx-$ngxVersion.tar.gz https://nginx.org/download/nginx-$ngxVersion.tar.gz
 $ cd /tmp && tar -xzvf /tmp/nginx-$ngxVersion.tar.gz && cd -

t/README.md

@@ -25,7 +25,7 @@ from `t`' s parent directory.
 The `prove` command creates a directory called `servroot` in `t`, so if the `t` folder is accessible read-only, for
 example in a docker container, just make a copy somewhere else and run the tests from there:
 
-```
+```shell
 cp -r t /tmp
 cd /tmp
 prove -v