Update todomvc README.md

[eojeel]

update the refs link within the todomvc readme.

Description

Fixes #0000

Checklist

• I have reviewed my own code
• I have added tests

[github-actions]

Size Comparison

examples	master (KB)	pull request (KB)	diff (KB)	diff (%)
async_clock	102.236	102.236	0	0.000%
boids	175.992	175.992	0	0.000%
communication_child_to_parent	94.727	94.727	0	0.000%
communication_grandchild_with_grandparent	107.649	107.649	0	0.000%
communication_grandparent_to_grandchild	102.927	102.927	0	0.000%
communication_parent_to_child	91.086	91.086	0	0.000%
contexts	107.646	107.646	0	0.000%
counter	88.053	88.053	0	0.000%
counter_functional	88.406	88.406	0	0.000%
dyn_create_destroy_apps	90.952	90.952	0	0.000%
file_upload	101.881	101.881	0	0.000%
function_memory_game	174.668	174.668	0	0.000%
function_router	350.883	350.883	0	0.000%
function_todomvc	163.343	163.343	0	0.000%
futures	232.052	232.052	0	0.000%
game_of_life	112.321	112.321	0	0.000%
immutable	189.857	189.857	0	0.000%
inner_html	81.741	81.741	0	0.000%
js_callback	111.353	111.353	0	0.000%
keyed_list	201.224	201.224	0	0.000%
mount_point	84.668	84.668	0	0.000%
nested_list	116.049	116.049	0	0.000%
node_refs	92.217	92.217	0	0.000%
password_strength	1755.160	1755.160	0	0.000%
portals	95.410	95.410	0	0.000%
router	320.504	320.504	0	0.000%
simple_ssr	142.547	142.547	0	0.000%
ssr_router	389.962	389.962	0	0.000%
suspense	117.560	117.560	0	0.000%
timer	90.680	90.680	0	0.000%
timer_functional	99.837	99.837	0	0.000%
todomvc	143.878	143.878	0	0.000%
two_apps	87.766	87.766	0	0.000%
web_worker_fib	136.886	136.886	0	0.000%
web_worker_prime	187.293	187.293	0	0.000%
webgl	84.350	84.350	0	0.000%

✅ None of the examples has changed their size significantly.