Updated guides

.github/ISSUE_TEMPLATE/04-add-a-translation.yml

@@ -7,17 +7,21 @@ body:
 
   - type: markdown
     attributes:
-      value: >-
-        **Important**: Before creating a new translation, please make sure that
-        Material for MkDocs does not already include support for your language.
-        Please check the list of all [available languages](https://squidfunk.github.io/mkdocs-material/setup/changing-the-language/#site-language)
-        and help us by adding missing translations.
+      value: |-
+        **Important**: Before creating a new translation, please check if
+        Material for MkDocs already supports your language. Review the list of
+        [available languages](https://squidfunk.github.io/mkdocs-material/setup/changing-the-language/#site-language),
+        pick your language to add new or improve existing translations.
 
   - type: textarea
     id: translations
     attributes:
       label: Translations
-      description: Please translate the labels on the right, e.g. "Copy to clipboard", etc.
+      description: >-
+        Please translate the labels on the right. For new languages, translate
+        each line. For existing languages, only translate lines containing the
+        icon :arrow_left: and remove the icon before submitting.
+        [More](https://squidfunk.github.io/mkdocs-material/contributing/adding-a-translation/#translations)
       value: |-
         {% macro t(key) %}{{ {
           "language": "en",
@@ -63,19 +67,30 @@ body:
     validations:
       required: true
 
+  - type: textarea
+    id: country-flag
+    attributes:
+      label: Country flag icon
+      description: >-
+        Please add the flag of the country when adding a new language. Select
+        it on our [Icons, Emojis site](https://squidfunk.github.io/mkdocs-material/reference/icons-emojis/#search)
+        by entering `flag` in the search field. If your flag is not provided by
+        Twemoji, please choose the closest matching flag.
+        [More](https://squidfunk.github.io/mkdocs-material/contributing/adding-a-translation/#country-flag)
+      placeholder: |-
+        Post the flag of the country here.
+
   - type: checkboxes
     id: checklist
     attributes:
       label: Before submitting
       description: >-
-        Please ensure that your translation fulfills the following
-        requirements.
+        Please ensure that your translation fulfills the following requirements.
       options:
         - label: I've checked the list of [available languages](https://squidfunk.github.io/mkdocs-material/setup/changing-the-language/#site-language) for existing translations.
           required: true
-        - label: I assure that the translations are accurate to my best knowledge.
+        - label: I have assured that, to the best of my knowledge, the translations are accurate.
           required: true
         - label: >-
             __Optional__: I want to integrate this translation myself and create a
             pull request following the [contribution guide](https://github.com/squidfunk/mkdocs-material/blob/master/CONTRIBUTING.md).
-