docs: specify pre-translate default value (#624)

src/main/java/com/crowdin/cli/commands/actions/PreTranslateAction.java

@@ -87,7 +87,7 @@ private List<String> prepareLanguageIds(CrowdinProjectInfo projectInfo) {
         List<String> projectLanguages = projectInfo.getProjectLanguages(false).stream()
             .map(Language::getId)
             .collect(Collectors.toList());
-        if (languageIds.size() == 1 && BaseCli.ALL.equals(languageIds.get(0))) {
+        if (languageIds.size() == 1 && BaseCli.ALL.equalsIgnoreCase(languageIds.get(0))) {
             return projectLanguages;
         } else {
             String wrongLanguageIds = languageIds.stream()

src/main/resources/messages/messages.properties

@@ -321,7 +321,7 @@ crowdin.comment.resolve.id=Numeric ID of the string comment
 # CROWDIN PRE-TRANSLATE
 crowdin.pre-translate.usage.description=Pre-translate files via Machine Translation (MT) or Translation Memory (TM)
 crowdin.pre-translate.usage.customSynopsis=@|fg(green) crowdin pre-translate|@ [CONFIG OPTIONS] [OPTIONS]
-crowdin.pre-translate.language=Languages to which pre-translation should be applied
+crowdin.pre-translate.language=Languages to which pre-translation should be applied. Default: ALL
 crowdin.pre-translate.method=Defines pre-translation method. Supported values: mt, tm
 crowdin.pre-translate.engine-id=Machine Translation engine Identifier
 crowdin.pre-translate.auto-approve-option=Defines which translations added by TM pre-translation should be auto-approved. Supported values: all, except-auto-substituted, perfect-match-only. Default: none

website/mantemplates/crowdin-pre-translate.adoc

@@ -20,6 +20,7 @@ include::{includedir}/{command}.adoc[tag=picocli-generated-man-section-footer]
 Crowdin CLI uses the `crowdin.yml` configuration to Pre-Translate files.
 
 - At first, it finds local source files that match the source configuration pattern. Then CLI tries to find the corresponding files in the crowdin project. After that, CLI will request Pre-translation for the found file IDs (matching these files to local sources and configuration file).
+- `-l`, `--language=language_code` - defines the language to which pre-translation should be applied. By default, pre-translation is applied for all project's target languages. link:https://developer.crowdin.com/language-codes/[Crowdin Language Codes].
 - The `--engine-id` value you can find in the MT engine details (_Profile_ > _Machine translation_ for crowdin.com and _Dashboard_ > _Machine translation_ for Crowdin Enterprise)
 
 === Examples