diff --git a/PROGRESS.md b/PROGRESS.md
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-| State                 | Chapter     |
-| --------------------- | ----------- |
-| :white_checkmark:     | 1.1         |
-| :white_checkmark:     | 1.2         |
-| :White_checkmark:     | 1.3         |
-| :white_checkmark:     | 2           |
-| :white_checkmark:     | 2.1         |
-| :white_checkmark:     | 2.1.1       |
-| :white_checkmark:     | 2.1.2       |
-| :white_checkmark:     | 2.1.3       |
-| :construction_worker: | 2.1.4       |
-| :white_checkmark:     | 2.1.5       |
-| :white_checkmark:     | 2.2         |
-| :white_checkmark:     | 2.2.1       |
-| :white_checkmark:     | 2.2.2       |
-| :white_checkmark:     | 2.2.3       |
-| :contsrtucion_worker: | 2.2.4       |
-| :white_checkmark:     | 2.2.5       |
-| :white_checkmark:     | 2.2.6       |
-| :white_checkmark:     | 2.3         |
-| :white_checkmark:     | 2.3.1       |
-| :white_checkmark:     | 2.3.2       |
-| :white_checkmark:     | 2.3.3       |
-| :whtie_checkmark:     | 2.4         |
-| :white_checkmark:     | 2.4.1       |
-| :white_checkmark:     | 2.4.2       |
-| :white_checkmark:     | 2.4.3       |
-| :white_checkmark:     | 2.4.4       |
-| :white_checkmark:     | 2.4.5       |
-| :red_checkmark:       | 2.4.6       |
-| :white_checkmark:     | 2.4.7       |
-| :white_checkmark:     | 2.4.8       |
-| :white_checkmark:     | 2.5         |
-| :white_checkmark:     | 2.5.1       |
-| :white_checkmark:     | 2.5.2       |
-| :white_checkmark:     | 2.5.3       |
-| :white_checkmark:     | 3           |
-| :white_checkmark:     | 3.1         |
-| :construction_worker: | 3.1.1       |
-| :white_checkmark:     | 3.1.2       |
-| :white_checkmark:     | 3.1.3       |
-| :white_checkmark:     | 3.1.4       |
-| :whtie_checkmark:     | 3.1.5       |
-| :white_checkmark:     | 3.1.6       |
-| :white_checkmark:     | 3.1.7       |
-| :white_checkmark:     | 3.1.8       |
-| :construction_worker: | 3.1.9       |
-| :white_checkmark:     | 3.2         |
-| :white_checkmark:     | 3.2.1       |
-| :white_checkmark:     | 3.2.2       |
-| :white_checkmark:     | 3.2.3       |
-| :white_checkmark:     | 3.2.4       |
-| :white_checkmark:     | 3.2.5       |
-| :white_checkmark:     | 3.2.6       |
-| :white_checkmark:     | 3.2.7       |
-| :white_checkmark:     | 3.2.8       |
-| :white_checkmark:     | 3.2.9       |
-| :white_checkmark:     | 3.2.10      |
-| :white_checkmark:     | 3.2.11      |
-| :white_checkmark:     | 3.2.12      |
-| :white_checkmark:     | 3.2.13      |
-| :white_checkmark:     | 3.2.14      |
-| :white_checkmark:     | 3.2.15      |
-| :white_checkmark:     | 3.2.16      |
-| :white_checkmark:     | 3.2.17      |
-| :red_circle:          | 3.2.18      |
-| :white_checkmark:     | 3.2.19      |
-| :white_checkmark:     | 3.2.20      |
-| :white_checkmark:     | 4.1         |
-| :white_checkmark:     | 4.2         |
-| :white_checkmark:     | 4.3         |
-| :white_checkmark:     | 5.1         |
-| :white_checkmark:     | 5.2         |
-| :white_checkmark:     | 5.3         |
-| :white_checkmark:     | 5.4         |
-| :white_checkmark:     | 5.5         |
-| :construction_worker: | Appendix A  |
-| :white_checkmark:     | Appendix B  |
-| :white_checkmark:     | Appendix C  |
-| :white_checkmark:     | Appendix D  | 
-| :white_checkmark:     | Appendix E  |
-| :white_checkmark:     | Appendix F  |
-| :construction_worker: | Appendix G  |