Add some docs for linter, comment, status

runtime/plugins/comment/help/comment.md

@@ -0,0 +1,60 @@
+# Comment Plugin
+
+The comment plugin provides auto commenting/uncommenting.
+The default binding to comment/uncomment a line is `Alt-/`,
+but you can easily modify that in your `bindings.json` file:
+
+```json
+{
+    "Alt-g": "comment.comment"
+}
+```
+
+You can also execute a command which will do the same thing as
+the binding:
+
+```
+> comment
+```
+
+If you have a selection, the plugin will comment all the lines
+selected.
+
+The comment type will be auto detected based on the filetype,
+but it is only available for certain filetypes:
+
+* c: `// %s`
+* c++: `// %s`
+* d: `// %s`
+* go: `// %s`
+* html: `<!-- %s -->`
+* java: `// %s`
+* javascript: `// %s`
+* julia: `# %s`
+* lua: `-- %s`
+* perl: `# %s`
+* php: `// %s`
+* python: `# %s`
+* python3: `# %s`
+* ruby: `# %s`
+* rust: `// %s`
+* shell: `# %s`
+* swift: `// %s`
+
+If your filetype is not available here, you can simply modify
+the `commenttype` option:
+
+```
+set commenttype "/* %s */"
+```
+
+Or in your `settings.json`:
+
+```json
+{
+    "*.c": {
+        "commenttype": "/* %s */"
+    }
+}
+```
+