Add merchants

Closes #899 and #900

See merge request monero-project/monero-site!964

Updated contact information for Sarang

See merge request monero-project/monero-site!966

Update merchants.yml

See merge request monero-project/monero-site!959

Update build instruction to Jekyll serve without the production base url.

See merge request monero-project/monero-site!960

Added MRL-0010 paper

See merge request monero-project/monero-site!961

Update default ringsize to 11

See merge request monero-project/monero-site!962

Fix bug in merchants that breaks jekyll build

See merge request monero-project/monero-site!958

User guide "view-wallet" update to 0.13

See merge request monero-project/monero-site!948

Update user guide "remote node GUI" to 0.13.0

See merge request monero-project/monero-site!947

Update merchants.yml

See merge request monero-project/monero-site!956

Typo corrected in French user guide "how to fix stuck funds"

See merge request monero-project/monero-site!941

Remove obsolete get_random_* RPC

See merge request monero-project/monero-site!944

Translate banner for hard fork in Italian

See merge request monero-project/monero-site!928

Added monero merchant service

See merge request monero-project/monero-site!951

Fixed Spanish Press Translation

See merge request monero-project/monero-site!924

Community meeting log from 10-13

See merge request monero-project/monero-site!925

translating to russian language #324

See merge request !913

ES Translation of Moneropedia page in es.yml

See merge request monero-project/monero-site!936

Updates and additions to MRL section

See merge request monero-project/monero-site!950

- Bump version to 1.2.0
- AR new screenshots (all of them were EN), text not updated: will need an arabic speaker.
- EN new `settings` screnshot, text update, bump to 1.2.0
- ES new `settings` screnshot, text update (untranslated), bump to 1.2.0
- FR new `settings` screnshot, text update, bump to 1.2.0
- IT new `settings` screnshot, text update (untranslated), bump to 1.2.0
- PL new `settings` screnshot, text update, bump to 1.2.0

Correct wallet rpc guide, method make_integrated_address, optional Payment ID

See merge request monero-project/monero-site!929

Wallet RPC: Correct proving process typo (from transaction to spend and reserve, and s/as/has/)

See merge request !932

Final translation of user-guides w/revisions

See merge request monero-project/monero-site!916