WP-JSON files added
Merge branch 'staging' into wordpress-template
checking if WP-JSON template works right after activating it
instruction to activate WP-JSON theme added
screenshot file added
helper functions to modify links
reading slug from URL
Merge branch 'staging' into wordpress-template
language improvement
Revert "language improvement"

This reverts commit 2eeffbcb90ac3d09c56972f7e973caef9f6e00fe.
Revert "Revert "language improvement""

This reverts commit 814f3e5e2aec0b6fabe6cd30e7ba30ed3f76510d.
functionality for serving posts added
categories added
pages added
params fix
readme up to date
italics added
fix when no params specified in API request
returning json array instead of object
posts, pages and categories done with testing