Add FAQ section in docs about camelot

[nightwarriorftw]

@vinayak-mehta I want to work on this issue

[vinayak-mehta]

@nightwarrior-xxx You can do that! #28 (comment) could be another FAQ that could be added. "How to optimize memory usage for large PDFs?"

[anakin87]

@vinayak-mehta If I find the time, I can work on memory optimization FAQ, if you want. Please let me know how to address this theme..

[nightwarriorftw]

@anakin87 We i.e. @nightwarrior-xxx and @CRTejaswi are working on this issue please make sure that you don't add duplicate questions.

[vinayak-mehta]

@nightwarrior-xxx We can all work on it together :)

I was thinking that maybe we should add a code snippet based on a simpler version of @anakin87's snippet from the issue mentioned above. We could say that if the user has a lot of pages, then they extract tables from chunks of pages, flush those dataframes to disk and then delete the dataframes.

[nightwarriorftw]

@nightwarrior-xxx Sounds like a good plan.

[nightwarriorftw]

@vinayak-mehta Please look at this #90

[anakin87]

If you want, I can prepare a simpler version of my snippet, better explicating what I do to save memory.

[vinayak-mehta]

If you want, I can prepare a simpler version of my snippet, better explicating what I do to save memory.

@anakin87 That would be awesome! Please raise a PR when you get time.