[foreign-jextract] [Rev 02] RFR: 8241349: initial version of panama_jextract.md

[Athijegannathan Sundararajan]

> adding initial version panama_jextract.md

Athijegannathan Sundararajan has updated the pull request incrementally with one additional commit since the last
revision:

  Review suggestion on "Samples" section text.

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Changes:
  - all: https://git.openjdk.java.net/panama-foreign/pull/61/files
  - new: https://git.openjdk.java.net/panama-foreign/pull/61/files/f0bd6830..080bb7a3

Webrevs:
 - full: https://webrevs.openjdk.java.net/panama-foreign/61/webrev.02
 - incr: https://webrevs.openjdk.java.net/panama-foreign/61/webrev.01-02

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/panama-foreign/pull/61.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-foreign pull/61/head:pull/61

PR: https://git.openjdk.java.net/panama-foreign/pull/61