[NEW TOOL] common reg expression and latex generator?

[liu1084]

What tool do you want?
common reg expression and latex generator?

Describe the solution you'd like

1. common reg expression: like phone, email, ipaddress, id card number and so on.

2. latex gererator: like convert math expression to latex, and convert latext image to latex text.
   
   $$
   Q\left(s_t, a_t\right)=Q\left(s_t, a_t\right)+\alpha\left(r_{t+1}+\gamma \max a Q\left(s{t+1}, a\right)-Q\left(s_t, a_t\right)\right)
   $$

[sharevb]

Hi, will make a PR regarding common regex cheatsheet
Regarding math to latex, will make a PR
But image to latex will not be possible, you can use mathpix that is really impressive

[sharevb]

Hi @liu1084 and @CorentinTh, math format conversion is implemented in #1101