Slang linter for Verilog. (#4713)

doc/ale-verilog.txt

@@ -3,7 +3,7 @@ ALE Verilog/SystemVerilog Integration                     *ale-verilog-options*
 
 
 ===============================================================================
-ALE can use six different linters for Verilog HDL:
+ALE can use seven different linters for Verilog HDL:
 
   HDL Checker
     Using `hdl_checker --lsp`
@@ -11,6 +11,9 @@ ALE can use six different linters for Verilog HDL:
   iverilog:
     Using `iverilog -t null -Wall`
 
+  slang:
+    Using `slang -Weverything`
+
   verilator
     Using `verilator --lint-only -Wall`
 
@@ -21,7 +24,7 @@ ALE can use six different linters for Verilog HDL:
     Using `xvlog`
 
   Yosys
-    Using `ysoys -Q -T -p 'read_verilog'`
+    Using `yosys -Q -T -p 'read_verilog'`
 
 By default, both 'verilog' and 'systemverilog' filetypes are checked.
 
@@ -64,6 +67,15 @@ iverilog                                                 *ale-verilog-iverilog*
 
   No additional options
 
+===============================================================================
+slang                                                       *ale-verilog-slang*
+
+g:ale_verilog_slang_option                        *g:ale_verilog_slang_options*
+                                                  *b:ale_verilog_slang_options*
+  Type: String
+  Default: ''
+
+  This variable can be changed to modify 'slang' command arguments.
 
 ===============================================================================
 verilator                                               *ale-verilog-verilator*
@@ -73,7 +85,7 @@ g:ale_verilog_verilator_options               *g:ale_verilog_verilator_options*
   Type: |String|
   Default: `''`
 
-  This variable can be changed to modify 'verilator' command arguments
+  This variable can be changed to modify 'verilator' command arguments.
 
   For example `'-sv --default-language "1800-2012"'` if you want to enable
   SystemVerilog parsing and select the 2012 version of the language.