nvim: add cpp-snippet for main()

.config/nvim/snippets/cpp.lua

@@ -3,6 +3,7 @@ local s = require("luasnip.nodes.snippet").S
 local f = require("luasnip.nodes.functionNode").F
 local i = require("luasnip.nodes.insertNode").I
 local fmt = require("luasnip.extras.fmt").fmt
+local t = require("luasnip.nodes.textNode").T
 
 local agpl =
 [[/*  This file is part of {project}.
@@ -88,5 +89,13 @@ return {
                     or 'INSERT_EMAIL'
             end),
             cursor = i(0)
-        }))
+        })),
+    s({ trig = 'main',
+        name = 'main',
+        dscr = 'main function'
+    }, {
+        t({ 'int main(int argc, char *argv[]) {' }),
+        i(0),
+        t({ '', '}' })
+    })
 }