diff --git a/docs/api-docs/ERD v.1.txt b/docs/api-docs/ER/ERD v.1.txt
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rename from docs/api-docs/ERD v.1.txt
rename to docs/api-docs/ER/ERD v.1.txt
diff --git a/docs/api-docs/ERD_v2_improved.txt b/docs/api-docs/ER/ERD_v2_improved.txt
similarity index 100%
rename from docs/api-docs/ERD_v2_improved.txt
rename to docs/api-docs/ER/ERD_v2_improved.txt
diff --git a/docs/api-docs/ERD_README.md b/docs/api-docs/ER/README.md
similarity index 100%
rename from docs/api-docs/ERD_README.md
rename to docs/api-docs/ER/README.md