rgpt: create page (#9918)

* rgpt: create page

* rgpt: fix formatting issues

* rgpt: Have better formatting in the description

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

* rgpt: better formatting for the verbose description

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

* rgpt: rename gpt3 to gpt
rename gpt3 to gpt because it now supports gpt3.5

---------

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

pages/common/rgpt.md

@@ -0,0 +1,28 @@
+# rgpt
+
+> An automated code review tool that uses GPT you can use straight from your terminal.
+> More information: <https://github.com/vibovenkat123/review-gpt>.
+
+- Ask GPT to improve the code with no extra options:
+
+`rgpt --i "$(git diff {{path/to/file}})"`
+
+- Get a more detailed verbose output from `rgpt` while reviewing the code:
+
+`rgpt --v --i "$(git diff {{path/to/file}})"`
+
+- Ask GPT to improve the code and limit it to a certain amount of GPT3 tokens:
+
+`rgpt --max {{300}} --i "$(git diff {{path/to/file}})"`
+
+- Ask GPT for a more unique result using a float value between 0 and 2. (higher = more unique):
+
+`rgpt --pres {{1.2}} --i "$(git diff {{path/to/file}})"`
+
+- Ask GPT to review your code using a specific model:
+
+`rgpt --model {{text-davinci-003}} --i "$(git diff {{path/to/file}})"`
+
+- Make `rgpt` use a JSON output:
+
+`rgpt --json --i "$(git diff {{path/to/file}})"`