RFR: 8288450: Update attribution in gstreamer.md file [v2]

[Alexander Matveev]

> Doc-only change to update the license attribution in our gstreamer.md and glib.md files.

Alexander Matveev has updated the pull request incrementally with one additional commit since the last revision:

  8288450: Update attribution in gstreamer.md file [v2]

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Changes:
  - all: https://git.openjdk.org/jfx/pull/807/files
  - new: https://git.openjdk.org/jfx/pull/807/files/3f480997..e214f1df

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=807&range=01
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=807&range=00-01

  Stats: 2 lines in 2 files changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jfx/pull/807.diff
  Fetch: git fetch https://git.openjdk.org/jfx pull/807/head:pull/807

PR: https://git.openjdk.org/jfx/pull/807