[Documentation][TypeScript] Improve generator documentation (#1331)

* Add parameters for the options in the tables of each generator

* Remove 'array of' phrase

Author: Batta32

templates/Virtual-Assistant-Template/typescript/generator-botbuilder-assistant/generators/app/README.md

@@ -36,10 +36,10 @@
 
 | Option                            | Description                                                                                                  |
 |-----------------------------------|--------------------------------------------------------------------------------------------------------------|
-| -n, --assistantName <name>              | name of new assistant (by default takes `customAssistant`)                                                          |
-| -d, --assistantDesc <description>       | description of the new assistant (by default takes ``) |
-| -l, --assistantLang <array of languages>| languages for the new assistant. Possible values are `de`, `en`, `es`, `fr`, `it`, `zh` (by default takes all the languages)| 
-| -p, --assistantGenerationPath <path>    | destination path for the new assistant (by default takes the path where you are runnning the generator)            |
+| -n, --assistantName [name]              | name of new assistant (by default takes `customAssistant`)                                                          |
+| -d, --assistantDesc [description]       | description of the new assistant (by default takes ``) |
+| -l, --assistantLang [languages]| languages for the new assistant. Possible values are `de`, `en`, `es`, `fr`, `it`, `zh` (by default takes all the languages)| 
+| -p, --assistantGenerationPath [path]    | destination path for the new assistant (by default takes the path where you are runnning the generator)            |
 | --noPrompt                        | indicates to avoid the prompts                                                                               |
 
 **NOTE:** If you don't use the _--noPrompt_ option, the process will keep prompting, but using the input values by default.

templates/Virtual-Assistant-Template/typescript/generator-botbuilder-assistant/generators/skill/README.md

@@ -36,10 +36,10 @@
 
 | Option                            | Description                                                                                                  |
 |-----------------------------------|--------------------------------------------------------------------------------------------------------------|
-| -n, --skillName <name>              | name of new skill (by default takes `customSkill`)                                                          |
-| -d, --skillDesc <description>       | description of the new skill (by default takes ``) |
-| -l, --skillLang <array of languages>| languages for the new skill. Possible values are `de`, `en`, `es`, `fr`, `it`, `zh` (by default takes all the languages)| 
-| -p, --skillGenerationPath <path>    | destination path for the new skill (by default takes the path where you are runnning the generator)            |
+| -n, --skillName [name]              | name of new skill (by default takes `customSkill`)                                                          |
+| -d, --skillDesc [description]       | description of the new skill (by default takes ``) |
+| -l, --skillLang [languages]| languages for the new skill. Possible values are `de`, `en`, `es`, `fr`, `it`, `zh` (by default takes all the languages)| 
+| -p, --skillGenerationPath [path]    | destination path for the new skill (by default takes the path where you are runnning the generator)            |
 | --noPrompt                        | indicates to avoid the prompts                                                                               |
 
 **NOTE:** If you don't use the _--noPrompt_ option, the process will keep prompting, but using the input values by default.