docs: add FORCE_COLOR variable to docs

Author: anthonyshew

docs/site/content/repo-docs/reference/options-overview.mdx

@@ -65,6 +65,7 @@ The three strategies listed above are in order of precedence. Where a flag value
 | Streamed logs prefix              | [`--log-prefix`](/repo/docs/reference/run#--log-prefix-option)                                                        | -                                                                                                                                                      | -                                                                                                                   |
 | Task logs output level            | [`--output-logs-option`](/repo/docs/reference/run#--output-logs-option)                                               | -                                                                                                                                                      | [`outputLogs`](/repo/docs/reference/configuration#outputlogs)                                                       |
 | Global inputs                     | [`--global-deps`](/repo/docs/reference/run#--global-deps-file-glob)                                                   | -                                                                                                                                                      | [`globalDependencies`](/repo/docs/reference/configuration#globaldependencies)                                       |
+| Terminal colors                   | [`--color`](/repo/docs/reference#--color)                                                                             | [FORCE_COLOR](/repo/docs/reference/system-environment-variables#force_color)                                                                           | -                                                                                                                   |
 
 </div>
 

docs/site/content/repo-docs/reference/system-environment-variables.mdx

@@ -17,6 +17,12 @@ System environment variables are always overridden by flag values provided direc
     </tr>
   </thead>
   <tbody>
+    <tr id="force_color">
+      <td>
+        <code>FORCE_COLOR</code>
+      </td>
+      <td>Forces color to be shown in terminal logs</td>
+    </tr>
     <tr id="turbo_api">
       <td>
         <code>TURBO_API</code>