[Improvements] Improvements to command docs.

This commit improves documentation for the following list of commands.

Sublime Merge
-------------
1. `commit`
2. `create_branch`
3. `create_tag`
4. `clean_working_dir`
5. `checkout_local_branch`
6. `delete_branch`
7. `delete_tag`
8. `discard_hunk`
9. `prompt_open_repository`
10. `rename_branch`
11. `reset`
12. `set_word_wrap`

Sublime Text
------------
None

sm_commands_metadata/c.json

@@ -24,7 +24,7 @@
             {
                 "name": "options",
                 "doc_string": null,
-                "type": "List<string>"
+                "type": "List[string]"
             }
         ],
         "added": 1055,
@@ -55,7 +55,7 @@
     },
     "create_branch": {
         "command_type": "window",
-        "doc_string": "Create the given branch.",
+        "doc_string": "Creates the given branch.",
         "args": [
             {
                 "name": "commit",
@@ -66,6 +66,16 @@
                 "name": "prefix",
                 "doc_string": null,
                 "type": "string"
+            },
+            {
+                "name": "name",
+                "doc_string": "The name of the branch.",
+                "type": "string"
+            },
+            {
+                "name": "branch",
+                "doc_string": null,
+                "type": "string"
             }
         ],
         "added": 1055,
@@ -85,6 +95,16 @@
                 "name": "commit",
                 "doc_string": null,
                 "type": "string"
+            },
+            {
+                "name": "message",
+                "doc_string": null,
+                "type": "string"
+            },
+            {
+                "name": "name",
+                "doc_string": "The name of the tag.",
+                "type": "string"
             }
         ],
         "added": 1055,
@@ -111,7 +131,14 @@
     },
     "clean_working_dir": {
         "command_type": "window",
-        "doc_string": null,
+        "doc_string": "Deletes all of the untracked files in the given repository.",
+        "args": [
+            {
+                "name": "prompt",
+                "doc_string": "Whether to show a confirmation dialog, asking the user to confirm the action.",
+                "type": "boolean"
+            }
+        ],
         "added": 1055,
         "type": "core"
     },
@@ -136,6 +163,13 @@
     "checkout_local_branch": {
         "command_type": "window",
         "doc_string": null,
+        "args": [
+            {
+                "name": "remote_branch",
+                "doc_string": null,
+                "type": "string"
+            }
+        ],
         "added": 2042,
         "type": "core"
     },

sm_commands_metadata/d.json

@@ -11,7 +11,7 @@
         "args": [
             {
                 "name": "prompt",
-                "doc_string": null,
+                "doc_string": "Whether to show a confirmation dialog, asking the user to confirm the action.",
                 "type": "boolean"
             },
             {
@@ -52,8 +52,13 @@
         "args": [
             {
                 "name": "prompt",
-                "doc_string": null,
+                "doc_string": "Whether to show a confirmation dialog, asking the user to confirm the action.",
                 "type": "boolean"
+            },
+            {
+                "name": "ref",
+                "doc_string": null,
+                "type": "string"
             }
         ],
         "added": 1055,
@@ -119,7 +124,14 @@
     },
     "discard_hunk": {
         "command_type": "window",
-        "doc_string": null,
+        "doc_string": "Discards the changes present in the given hunk.",
+        "args": [
+            {
+                "name": "prompt",
+                "doc_string": "Whether to show a confirmation dialog, asking the user to confirm the action.",
+                "type": "boolean"
+            }
+        ],
         "added": 1055,
         "type": "core"
     }

sm_commands_metadata/p.json

@@ -7,7 +7,7 @@
     },
     "prompt_open_repository": {
         "command_type": "window",
-        "doc_string": null,
+        "doc_string": "Opens the default OS dialog to select a git repository. The repository is opened in a seperate tab.",
         "added": 1055,
         "type": "core"
     },

sm_commands_metadata/r.json

@@ -19,12 +19,17 @@
     },
     "rename_branch": {
         "command_type": "window",
-        "doc_string": null,
+        "doc_string": "Renames the given branch.",
         "args": [
             {
                 "name": "branch",
                 "doc_string": null,
                 "type": "string"
+            },
+            {
+                "name": "new_name",
+                "doc_string": "The new name for the branch.",
+                "type": "string"
             }
         ],
         "added": 1055,
@@ -66,7 +71,7 @@
             },
             {
                 "name": "mode",
-                "doc_string": "Valid values are 'soft', 'Hard', 'mixed'",
+                "doc_string": "Valid values are 'soft', 'hard' and 'mixed'.",
                 "type": "string"
             }
         ],

sm_commands_metadata/s.json

@@ -190,5 +190,18 @@
         "doc_string": "Saves the edited commit message while the commit message is in an edit mode.",
         "added": 1055,
         "type": "core"
+    },
+    "set_word_wrap": {
+        "command_type": "window",
+        "doc_string": "Sets the word wrap for the diff hunks.",
+        "args": [
+            {
+                "name": "word_wrap",
+                "doc_string": "The mode for the word wrap. Valid values are 'true', 'false' & 'auto'. 'true' enables the wordwrap & 'false' disables the word wrap.",
+                "type": "string | boolean"
+            }
+        ],
+        "added": 1088,
+        "type": "core"
     }
 }