update generator doc

docs/generators/elm.md

@@ -6,4 +6,7 @@ CONFIG OPTIONS for elm
 	        0.19 - Elm 0.19
 	        0.18 - Elm 0.18
 
+	elmPrefixCustomTypeVariants
+	    Prefix custom type variants (Default: false)
+
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docs/generators/erlang-server.md

@@ -4,4 +4,7 @@ CONFIG OPTIONS for erlang-server
 	packageName
 	    Erlang package name (convention: lowercase). (Default: openapi)
 
+	openAPISpecName
+	    Openapi Spec Name. (Default: openapi)
+
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docs/generators/rust.md

@@ -10,4 +10,9 @@ CONFIG OPTIONS for rust
 	hideGenerationTimestamp
 	    Hides the generation timestamp when files are generated. (Default: true)
 
+	library
+	    library template (sub-template) to use. (Default: hyper)
+	        hyper - HTTP client: Hyper.
+	        reqwest - HTTP client: Reqwest.
+
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docs/generators/spring.md

@@ -152,6 +152,9 @@ CONFIG OPTIONS for spring
 	useBeanValidation
 	    Use BeanValidation API annotations (Default: true)
 
+	performBeanValidation
+	    Use Bean Validation Impl. to perform BeanValidation (Default: false)
+
 	implicitHeaders
 	    Use of @ApiImplicitParams for headers. (Default: false)
 
@@ -164,6 +167,9 @@ CONFIG OPTIONS for spring
 	useOptional
 	    Use Optional container for optional parameters (Default: false)
 
+	hateoas
+	    Use Spring HATEOAS library to allow adding HATEOAS links (Default: false)
+
 	library
 	    library template (sub-template) to use (Default: spring-boot)
 	        spring-boot - Spring-boot Server application using the SpringFox integration.