docs: add rcurtin as a contributor (#511)

* docs: update README.md [skip ci]

* docs: update .all-contributorsrc [skip ci]

Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>

.all-contributorsrc

@@ -377,6 +377,15 @@
       "contributions": [
         "code"
       ]
+    },
+    {
+      "login": "rcurtin",
+      "name": "Ryan Curtin",
+      "avatar_url": "https://avatars0.githubusercontent.com/u/1845039?v=4",
+      "profile": "http://www.ratml.org/",
+      "contributions": [
+        "doc"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -952,6 +952,7 @@ This project was created by [Henry Schreiner](https://github.com/henryiii) and m
     <td align="center"><a href="https://github.com/geir-t"><img src="https://avatars3.githubusercontent.com/u/35292136?v=4" width="100px;" alt=""/><br /><sub><b>geir-t</b></sub></a><br /><a href="#platform-geir-t" title="Packaging/porting to new platform">📦</a></td>
     <td align="center"><a href="https://ondrejcertik.com/"><img src="https://avatars3.githubusercontent.com/u/20568?v=4" width="100px;" alt=""/><br /><sub><b>Ondřej Čertík</b></sub></a><br /><a href="https://github.com/CLIUtils/CLI11/issues?q=author%3Acertik" title="Bug reports">🐛</a></td>
     <td align="center"><a href="http://sam.hocevar.net/"><img src="https://avatars2.githubusercontent.com/u/245089?v=4" width="100px;" alt=""/><br /><sub><b>Sam Hocevar</b></sub></a><br /><a href="https://github.com/CLIUtils/CLI11/commits?author=samhocevar" title="Code">💻</a></td>
+    <td align="center"><a href="http://www.ratml.org/"><img src="https://avatars0.githubusercontent.com/u/1845039?v=4" width="100px;" alt=""/><br /><sub><b>Ryan Curtin</b></sub></a><br /><a href="https://github.com/CLIUtils/CLI11/commits?author=rcurtin" title="Documentation">📖</a></td>
   </tr>
 </table>
 

include/CLI/Error.hpp

@@ -176,7 +176,7 @@ class CallForVersion : public Success {
         : CallForVersion("This should be caught in your main function, see examples", ExitCodes::Success) {}
 };
 
-/// Does not output a diagnostic in CLI11_PARSE, but allows to return from main() with a specific error code.
+/// Does not output a diagnostic in CLI11_PARSE, but allows main() to return with a specific error code.
 class RuntimeError : public ParseError {
     CLI11_ERROR_DEF(ParseError, RuntimeError)
     explicit RuntimeError(int exit_code = 1) : RuntimeError("Runtime error", exit_code) {}