add Science & Education category to dictionary apps lacking it

metadata/aarddict.android.yml

 Categories:
+  - Science & Education
   - Reading
 License: GPL-3.0-only
 WebSite: http://aarddict.org

metadata/buet.rafi.dictionary.yml

 Categories:
+  - Science & Education
   - Reading
 License: GPL-2.0-only
 AuthorWebSite: https://facebook.com/RidmikLab

metadata/com.concept1tech.instalate.yml

 Categories:
   - Reading
+  - Science & Education
   - Internet
 License: GPL-3.0-only
 AuthorName: Concept1tech

metadata/com.edwardoyarzun.diccionario.yml

 Categories:
+  - Science & Education
   - Reading
 License: GPL-3.0-only
 SourceCode: https://github.com/edwardoyarzun/diccionariochilenoandroid

metadata/com.javierllorente.adc.yml

 Categories:
+  - Science & Education
   - Reading
 License: GPL-3.0-only
 AuthorName: Javier Llorente

metadata/com.mykola.lexinproject.yml

 Categories:
+  - Science & Education
   - Reading
 License: Apache-2.0
 SourceCode: https://github.com/cmykola/Lexin

metadata/com.nilhcem.frcndict.yml

 Categories:
+  - Science & Education
   - Reading
 License: BSD-3-Clause
 SourceCode: https://github.com/Nilhcem/frcndict-android

metadata/com.olam.yml

 Categories:
+  - Science & Education
   - Reading
 License: MIT
 SourceCode: https://github.com/vishnus/Olam

metadata/de.beowulf.libretranslater.yml

 Categories:
-  - Writing
+  - Science & Education
   - Reading
-  - Internet
 License: EUPL-1.2
 AuthorName: Beowulf
 AuthorEmail: incoming+beowuif-libretranslater-28803428-issue-@incoming.gitlab.com

metadata/de.kugihan.dictionaryformids.hmi_android.yml

 Categories:
+  - Science & Education
   - Reading
 License: GPL-2.0-or-later
 SourceCode: http://dictionarymid.sourceforge.net/android.html

metadata/de.reimardoeffinger.quickdic.yml

 Categories:
+  - Science & Education
   - Reading
 License: Apache-2.0
 SourceCode: https://github.com/rdoeffinger/Dictionary

metadata/itkach.aard2.yml

 Categories:
+  - Science & Education
   - Reading
 License: GPL-3.0-only
 WebSite: http://aarddict.org

metadata/org.developfreedom.wordpowermadeeasy.yml

 Categories:
+  - Science & Education
   - Reading
 License: GPL-3.0-only
 AuthorName: Shubham Chaudhary

metadata/org.happypeng.sumatora.android.sumatoradictionary.yml

 Categories:
+  - Science & Education
   - Reading
 License: GPL-3.0-or-later
 AuthorName: Nicolas Centa

metadata/org.mcxa.vortaro.yml

 Categories:
+  - Science & Education
   - Reading
 License: Apache-2.0
 AuthorName: Zoe

metadata/org.wiktionary.yml

 Categories:
+  - Science & Education
   - Internet
 License: GPL-2.0-only
 AuthorName: Wikimedia

metadata/uk.co.busydoingnothing.prevo.yml

 Categories:
+  - Science & Education
   - Reading
 License: GPL-2.0-only
 AuthorName: Neil Roberts