chore: Add Try on Frappe Cloud button to README

[NagariaHussain]

Add a 'Try on FCloud' button in the README file.

no-docs

[codecov]

Codecov Report

Merging #27950 (e52bca4) into develop (2bb383b) will increase coverage by 0.05%.
The diff coverage is n/a.

❗ Current head e52bca4 differs from pull request most recent head 94766d5. Consider uploading reports for the commit 94766d5 to get more accurate results

@@             Coverage Diff             @@
##           develop   #27950      +/-   ##
===========================================
+ Coverage    54.35%   54.41%   +0.05%     
===========================================
  Files         1255     1255              
  Lines        67809    67809              
===========================================
+ Hits         36860    36895      +35     
+ Misses       30949    30914      -35     

Impacted Files	Coverage Δ
...ctype/woocommerce_settings/woocommerce_settings.py	80.39% <0.00%> (-3.93%)	⬇️
erpnext/projects/doctype/project/project.py	53.90% <0.00%> (-0.71%)	⬇️
erpnext/stock/get_item_details.py	79.38% <0.00%> (-0.47%)	⬇️
...stock/doctype/purchase_receipt/purchase_receipt.py	90.34% <0.00%> (-0.27%)	⬇️
...ext/payroll/doctype/payroll_entry/payroll_entry.py	70.86% <0.00%> (-0.24%)	⬇️
erpnext/stock/stock_ledger.py	85.53% <0.00%> (-0.19%)	⬇️
...xt/accounts/doctype/sales_invoice/sales_invoice.py	76.75% <0.00%> (+0.08%)	⬆️
erpnext/selling/doctype/sales_order/sales_order.py	76.76% <0.00%> (+0.37%)	⬆️
erpnext/portal/product_configurator/utils.py	33.46% <0.00%> (+0.40%)	⬆️
...ice_creation_tool/opening_invoice_creation_tool.py	61.11% <0.00%> (+0.69%)	⬆️
... and 8 more