[#211] View's documentation correction and error section addition

Changes

• Error section like the ones found with CREATE FUNCTION/TABLE is added
• Formatting errors like the following were fixed in this commit
  • Addition of :code:
  • :code: actual_text to :code:actual_text
  • ,:code: actual_text was rendering :code: as is. Fixed by adding space between , and :code:
• Output of \d view_name corrected

Misc

• CREATE FUNCTION documentation had a space in :code: usage which was rendering :code: as is. This is fixed.