Add more language tags

Related to 32881

doc/user/project/import/svn.md

@@ -43,14 +43,14 @@ installations from source, the default repository directory will be
 `/home/git/repositories/USER/REPO.git`. For convenience, assign this path to a
 variable:
 
-```
+```shell
 GIT_REPO_PATH=/var/opt/gitlab/git-data/repositories/USER/REPOS.git
 ```
 
 SubGit will keep this repository in sync with a remote SVN project. For
 convenience, assign your remote SVN project URL to a variable:
 
-```
+```shell
 SVN_PROJECT_URL=http://svn.company.com/repos/project
 ```
 
@@ -58,14 +58,14 @@ Next you need to run SubGit to set up a Git/SVN mirror. Make sure the following
 `subgit` command is ran on behalf of the same user that keeps ownership of
 GitLab Git repositories (by default `git`):
 
-```
+```shell
 subgit configure --layout auto $SVN_PROJECT_URL $GIT_REPO_PATH
 ```
 
 Adjust authors and branches mappings, if necessary. Open with your favorite
 text editor:
 
-```
+```shell
 edit $GIT_REPO_PATH/subgit/authors.txt
 edit $GIT_REPO_PATH/subgit/config
 ```
@@ -78,7 +78,7 @@ For more information regarding the SubGit configuration options, refer to
 Now that SubGit has configured the Git/SVN repos, run `subgit` to perform the
 initial translation of existing SVN revisions into the Git repository:
 
-```
+```shell
 subgit install $GIT_REPO_PATH
 ```
 
@@ -90,7 +90,7 @@ works transparently and does not require any special commands.
 If you would prefer to perform one-time cut over migration with `subgit`, use
 the `import` command instead of `install`:
 
-```
+```shell
 subgit import $GIT_REPO_PATH
 ```
 
@@ -145,7 +145,7 @@ svn log --quiet | grep -E "r[0-9]+ \| .+ \|" | cut -d'|' -f2 | sed 's/ //g' | so
 Use the output from the last command to construct the authors file.
 Create a file called `authors.txt` and add one mapping per line.
 
-```
+```plaintext
 janedoe = Jane Doe <janedoe@example.com>
 johndoe = John Doe <johndoe@example.com>
 ```

doc/user/project/integrations/webhooks.md

@@ -126,7 +126,7 @@ Also, if a single push includes changes for more than three (by default, dependi
 
 **Request header**:
 
-```
+```plaintext
 X-Gitlab-Event: Push Hook
 ```
 
@@ -213,7 +213,7 @@ If a single push includes changes for more than three (by default, depending on
 
 **Request header**:
 
-```
+```plaintext
 X-Gitlab-Event: Tag Push Hook
 ```
 
@@ -267,7 +267,7 @@ Triggered when a new issue is created or an existing issue was updated/closed/re
 
 **Request header**:
 
-```
+```plaintext
 X-Gitlab-Event: Issue Hook
 ```
 
@@ -402,7 +402,7 @@ Valid target types:
 
 **Request header**:
 
-```
+```plaintext
 X-Gitlab-Event: Note Hook
 ```
 
@@ -482,7 +482,7 @@ X-Gitlab-Event: Note Hook
 
 **Request header**:
 
-```
+```plaintext
 X-Gitlab-Event: Note Hook
 ```
 
@@ -609,7 +609,7 @@ X-Gitlab-Event: Note Hook
 
 **Request header**:
 
-```
+```plaintext
 X-Gitlab-Event: Note Hook
 ```
 
@@ -714,7 +714,7 @@ X-Gitlab-Event: Note Hook
 
 **Request header**:
 
-```
+```plaintext
 X-Gitlab-Event: Note Hook
 ```
 
@@ -790,7 +790,7 @@ Triggered when a new merge request is created, an existing merge request was upd
 
 **Request header**:
 
-```
+```plaintext
 X-Gitlab-Event: Merge Request Hook
 ```
 
@@ -951,7 +951,7 @@ Triggered when a wiki page is created, updated or deleted.
 
 **Request Header**:
 
-```
+```plaintext
 X-Gitlab-Event: Wiki Page Hook
 ```
 
@@ -1007,7 +1007,7 @@ Triggered on status change of Pipeline.
 
 **Request Header**:
 
-```
+```plaintext
 X-Gitlab-Event: Pipeline Hook
 ```
 
@@ -1215,7 +1215,7 @@ Triggered on status change of a job.
 
 **Request Header**:
 
-```
+```plaintext
 X-Gitlab-Event: Job Hook
 ```
 
@@ -1328,7 +1328,7 @@ If the endpoint doesn't send its HTTP response within those 10 seconds, GitLab m
 If you are receiving multiple requests, you can try increasing the default value to wait for the HTTP response after sending the webhook
 by uncommenting or adding the following setting to your `/etc/gitlab/gitlab.rb`:
 
-```
+```ruby
 gitlab_rails['webhook_timeout'] = 10
 ```
 
@@ -1370,7 +1370,7 @@ Pick an unused port (e.g. 8000) and start the script: `ruby print_http_body.rb
 When you press 'Test' in GitLab, you should see something like this in the
 console:
 
-```
+```plaintext
 {"before":"077a85dd266e6f3573ef7e9ef8ce3343ad659c4e","after":"95cd4a99e93bc4bbabacfa2cd10e6725b1403c60",<SNIP>}
 example.com - - [14/May/2014:07:45:26 EDT] "POST / HTTP/1.1" 200 0
 - -> /

doc/user/project/issues/managing_issues.md

@@ -198,7 +198,7 @@ source code that can match references to:
 
 For example the following commit message:
 
-```
+```plaintext
 Awesome commit message
 
 Fix #20, Fixes #21 and Closes group/otherproject#22.

doc/user/project/merge_requests/reviewing_and_managing_merge_requests.md

@@ -200,7 +200,7 @@ project is a fork (even a private fork) of the target project.
 
 Add the following alias to your `~/.gitconfig`:
 
-```
+```plaintext
 [alias]
     mr = !sh -c 'git fetch $1 merge-requests/$2/head:mr-$1-$2 && git checkout mr-$1-$2' -
 ```
@@ -209,7 +209,7 @@ Now you can check out a particular merge request from any repository and any
 remote. For example, to check out the merge request with ID 5 as shown in GitLab
 from the `origin` remote, do:
 
-```
+```shell
 git mr origin 5
 ```
 
@@ -221,7 +221,7 @@ it out.
 Locate the section for your GitLab remote in the `.git/config` file. It looks
 like this:
 
-```
+```plaintext
 [remote "origin"]
   url = https://gitlab.com/gitlab-org/gitlab-foss.git
   fetch = +refs/heads/*:refs/remotes/origin/*
@@ -229,19 +229,19 @@ like this:
 
 You can open the file with:
 
-```
+```shell
 git config -e
 ```
 
 Now add the following line to the above section:
 
-```
+```plaintext
 fetch = +refs/merge-requests/*/head:refs/remotes/origin/merge-requests/*
 ```
 
 In the end, it should look like this:
 
-```
+```plaintext
 [remote "origin"]
   url = https://gitlab.com/gitlab-org/gitlab-foss.git
   fetch = +refs/heads/*:refs/remotes/origin/*
@@ -250,7 +250,7 @@ In the end, it should look like this:
 
 Now you can fetch all the merge requests:
 
-```
+```shell
 git fetch origin
 
 ...
@@ -262,7 +262,7 @@ From https://gitlab.com/gitlab-org/gitlab-foss.git
 
 And to check out a particular merge request:
 
-```
+```shell
 git checkout origin/merge-requests/1
 ```
 

doc/user/project/pages/custom_domains_ssl_tls_certification/index.md

@@ -174,13 +174,13 @@ from the GitLab project.
 To manually verify that you have properly configured the domain verification
 `TXT` DNS entry, you can run the following command in your terminal:
 
-```
+```shell
 dig _gitlab-pages-verification-code.<YOUR-PAGES-DOMAIN> TXT
 ```
 
 Expect the output:
 
-```
+```plaintext
 ;; ANSWER SECTION:
 _gitlab-pages-verification-code.<YOUR-PAGES-DOMAIN>. 300 IN TXT "gitlab-pages-verification-code=<YOUR-VERIFICATION-CODE>"
 ```